Company Details
prosper-marketplace
483
19,030
52
prosper.com
0
PRO_1924519
In-progress

Prosper Marketplace Company CyberSecurity Posture
prosper.comFounded in 2005, Prosper introduced U.S. consumers to an innovative new approach to personal finance called peer-to-peer lending. Almost 20 years later, Prosper has helped over 2 million customers achieve financial well-being through a comprehensive suite of products. Prosper’s flagship personal loan marketplace continues to offer a unique value for borrowers and investors alike. Home equity loans and lines of credit through Prosper provide homeowners a range of options and choices for tapping into the equity they’ve worked hard to build. The Prosper® Card supports people seeking access to credit and flexibility in managing their finances. Regardless of the product, Prosper is dedicated to meeting people where they are in their financial journey, in order to advance their financial well-being. Learn more at www.prosper.com. All personal loans made by WebBank. The Prosper® Card is an unsecured credit card issued by Coastal Community Bank, Member FDIC, pursuant to license by Mastercard® International. All home equity products are underwritten and issued by Prosper’s Lending Partners. Please see your agreement for details. Prosper Marketplace, Inc. NMLS# 111473 Licensing & Disclosures | NMLS Consumer Access Prosper Funding LLC 221 Main Street, Suite 300 | San Francisco, CA 94105 © 2005-2024 Prosper Funding LLC. All rights reserved. Prosper's borrower payment dependent notes (“Notes”) are offered pursuant to Prosper’s Prospectus (https://prosper.com/prospectus/)
Company Details
prosper-marketplace
483
19,030
52
prosper.com
0
PRO_1924519
In-progress
Between 0 and 549

Prosper Marketplace Global Score (TPRM)XXXX

Description: In September 2025, **Prosper**, a leading peer-to-peer lending platform, suffered a **massive data breach** exposing the personal information of **17 million users**. Unauthorized actors gained access to sensitive data, including **names, addresses, email addresses, Social Security numbers, and government-issued IDs**, though no customer accounts or funds were directly compromised. The breach, described as **sophisticated and stealthy**, exploited vulnerabilities in Prosper’s backend systems, allowing attackers to exfiltrate data without disrupting operations.The incident has raised concerns over **long-term risks like identity theft, phishing, and synthetic fraud**, despite Prosper’s assurances that no account takeovers occurred. The company has initiated **credit monitoring for victims** and partnered with cybersecurity firms to strengthen defenses. However, the breach underscores systemic weaknesses in fintech security, prompting calls for **regulatory oversight, zero-trust architectures, and stricter data governance**. Legal repercussions, including potential class-action lawsuits, are underway, while the stolen data—particularly **Social Security numbers**—remains a high-value target for fraudsters. The event serves as a stark reminder of the **fragility of trust in digital lending** and the urgent need for proactive cybersecurity measures.
Description: Prosper, a peer-to-peer lending marketplace, experienced a **data breach on September 2nd** due to unauthorized database queries by a hacker. The breach exposed **highly sensitive customer and applicant data**, including **names, Social Security numbers, government-issued IDs, employment/credit status, income levels, birth dates, physical addresses, IP addresses, and browser user-agent details**. While **no customer accounts or funds were accessed**, and **operations remained uninterrupted**, the stolen data—affecting **17.6 million unique email addresses**—poses severe risks for **phishing, identity theft, and fraud**. Prosper is offering **free credit monitoring** to affected individuals, but the exposure of such **comprehensive personal and financial information** significantly elevates the threat of long-term exploitation by cybercriminals.
Description: Prosper, a peer-to-peer (P2P) lending company, suffered a major **cyberattack** resulting in the **exfiltration of highly sensitive personal data** belonging to **17.6 million individuals**. The breach exposed a vast trove of confidential records, including financial and personally identifiable information (PII), which could lead to severe consequences such as identity theft, financial fraud, and reputational damage. The scale of the breach—affecting millions of customers—highlights a critical failure in data security protocols, potentially eroding trust in the company’s ability to safeguard user data. The incident underscores the growing threat of large-scale data exfiltration by malicious actors targeting financial institutions. Given the nature of the stolen data, affected individuals face long-term risks, including unauthorized access to credit profiles, loan fraud, and targeted phishing campaigns. The breach also raises regulatory concerns, as Prosper may face legal penalties for failing to protect customer data under data protection laws like **CCPA** or **GDPR** (if applicable).
Description: The California Office of the Attorney General reported that Prosper Marketplace, Inc. experienced a data breach on October 3, 2018. The breach was reported on November 26, 2018. The breach involved the unauthorized access to personal information of customers, including names, addresses, dates of birth, Social Security numbers, and Prosper account numbers. The incident did not involve any financial information or login credentials. The company took immediate steps to secure the affected systems and notified all potentially impacted individuals.
Description: Prosper Marketplace, a peer-to-peer lending fintech platform, suffered a major data breach exposing **17.6 million unique email addresses** and sensitive personal information of customers and prospective customers. The compromised data included **names, dates of birth, physical/email addresses, Social Security numbers, credit status, employment details, and income information**. While the company claims no unauthorized access to customer accounts or funds, the breach involved **unauthorized database queries** targeting proprietary and personal data. The incident was detected in mid-September, with the attack blocked by **September 2**, though the initial intrusion timeline remains undisclosed. Prosper, valued at nearly **$20 billion** after a $350 million funding round in April, has since enhanced security controls, including **robust monitoring and alerting systems**. The breach notification service *Have I Been Pwned* confirmed **2.8 million previously unexposed email addresses** among the leaked data, highlighting the severity of the exposure.
Description: **Millions Impacted in Two Major Financial Sector Data Breaches** Two recent cybersecurity incidents at financial services providers have exposed the personal and financial data of nearly **19 million individuals**, underscoring persistent vulnerabilities in the fintech and credit reporting sectors. ### **Prosper Marketplace Breach Affects 13.1 Million** San Francisco-based **Prosper Marketplace**, a peer-to-peer lending platform, confirmed on **September 1, 2025**, that unauthorized activity was detected on its systems. An investigation revealed attackers accessed sensitive data between **June and August 2025**, compromising records for **13.1 million individuals**. Exposed information includes: - Names, Social Security numbers, and national ID numbers - Dates of birth, bank account details, and Prosper account numbers - Driver’s license numbers, passport data, tax information, and payment card numbers While Prosper stated there was no evidence of unauthorized access to customer funds, the breach has prompted notifications to affected individuals, along with **two years of credit monitoring and identity restoration services** via Experian. Law enforcement was notified, and additional security measures have been implemented. The breach disproportionately impacted certain states, with **1.1 million affected in Texas**, **236,000 in South Carolina**, and **249,000 in Washington**. ### **700Credit Data Exposure Impacts 5.8 Million** Michigan-based **700Credit**, which provides credit reports and fraud detection services to U.S. car dealerships, disclosed a separate incident on **October 25, 2025**, after detecting unauthorized access to its systems. Attackers copied data belonging to **5,836,521 individuals**, including: - Names, Social Security numbers, and dates of birth - Physical addresses 700Credit will file a **consolidated breach notice with the FTC** on behalf of affected dealerships, following agency approval. The company has also notified the **FBI** and will coordinate with state attorneys general. While dealers are relieved of FTC reporting obligations, they remain responsible for **state-level breach notifications**. ### **Financial Sector Under Growing Threat** These incidents follow a **November 2025 cyberattack on SitusAMC**, a mortgage servicing provider, further highlighting the financial sector’s appeal to cybercriminals. No threat actors have claimed responsibility for the Prosper or 700Credit breaches, but the scale of exposure raises concerns about **identity theft and financial fraud**. Both companies have advised affected individuals to monitor their credit reports for suspicious activity.
Description: Peer-to-peer lending platform **Prosper** suffered a **cyberattack in September**, exposing **17.6 million records** (per HaveIBeenPwned). The breach compromised **highly sensitive personal data**, including **email addresses, browser user agents, credit statuses, dates of birth, employment details, government-issued IDs, income levels, IP addresses, names, physical addresses, and Social Security numbers**. While **customer accounts and funds remained secure**, the leak of **SSNs and financial identifiers** poses severe risks of **identity theft, fraud, and long-term reputational harm**. Prosper’s investigation remains ongoing, with no confirmed timeline for the intrusion’s start or full scope. The company has pledged **free credit monitoring** for victims and is cooperating with law enforcement. Given Prosper’s role in facilitating **$28 billion+ in loans**, the breach undermines trust in its **data security practices**, though operational disruptions were avoided. If validated, this would rank among **2024’s largest financial-sector breaches**, though it falls short of historic incidents like Yahoo (3B) or JPMorgan Chase (83M).


Prosper Marketplace has 502.41% more incidents than the average of same-industry companies with at least one recorded incident.
Prosper Marketplace has 541.03% more incidents than the average of all companies with at least one recorded incident.
Prosper Marketplace reported 5 incidents this year: 0 cyber attacks, 0 ransomware, 0 vulnerabilities, 5 data breaches, compared to industry peers with at least 1 incident.
Prosper Marketplace cyber incidents detection timeline including parent company and subsidiaries

Founded in 2005, Prosper introduced U.S. consumers to an innovative new approach to personal finance called peer-to-peer lending. Almost 20 years later, Prosper has helped over 2 million customers achieve financial well-being through a comprehensive suite of products. Prosper’s flagship personal loan marketplace continues to offer a unique value for borrowers and investors alike. Home equity loans and lines of credit through Prosper provide homeowners a range of options and choices for tapping into the equity they’ve worked hard to build. The Prosper® Card supports people seeking access to credit and flexibility in managing their finances. Regardless of the product, Prosper is dedicated to meeting people where they are in their financial journey, in order to advance their financial well-being. Learn more at www.prosper.com. All personal loans made by WebBank. The Prosper® Card is an unsecured credit card issued by Coastal Community Bank, Member FDIC, pursuant to license by Mastercard® International. All home equity products are underwritten and issued by Prosper’s Lending Partners. Please see your agreement for details. Prosper Marketplace, Inc. NMLS# 111473 Licensing & Disclosures | NMLS Consumer Access Prosper Funding LLC 221 Main Street, Suite 300 | San Francisco, CA 94105 © 2005-2024 Prosper Funding LLC. All rights reserved. Prosper's borrower payment dependent notes (“Notes”) are offered pursuant to Prosper’s Prospectus (https://prosper.com/prospectus/)

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In a significant development in one of the year's largest fintech breaches, new reports released today confirm that Prosper Marketplace,...
Popular lending platform Prosper Marketplace has disclosed a significant data breach that leaked the sensitive personal and financial...
Prosper confirmed a major data breach affecting 17 million people. Learn what happened, why it matters for fintech security,...
Peer-to-peer lending marketplace Prosper detected unauthorized activity on their systems on September 2, 2025.
More than 17 million individuals were likely impacted by a data breach at peer-to-peer lending marketplace Prosper.
Hackers appear to have stolen personal information pertaining to more than 17 million individuals from peer-to-peer lending marketplace...
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Learn more about the Prosper data breach and how to sign up for legal action if you were affected.

Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.
The official website of Prosper Marketplace is http://www.prosper.com/.
According to Rankiteo, Prosper Marketplace’s AI-generated cybersecurity score is 151, reflecting their Critical security posture.
According to Rankiteo, Prosper Marketplace currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.
According to Rankiteo, Prosper Marketplace is not certified under SOC 2 Type 1.
According to Rankiteo, Prosper Marketplace does not hold a SOC 2 Type 2 certification.
According to Rankiteo, Prosper Marketplace is not listed as GDPR compliant.
According to Rankiteo, Prosper Marketplace does not currently maintain PCI DSS compliance.
According to Rankiteo, Prosper Marketplace is not compliant with HIPAA regulations.
According to Rankiteo,Prosper Marketplace is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.
Prosper Marketplace operates primarily in the Financial Services industry.
Prosper Marketplace employs approximately 483 people worldwide.
Prosper Marketplace presently has no subsidiaries across any sectors.
Prosper Marketplace’s official LinkedIn profile has approximately 19,030 followers.
Prosper Marketplace is classified under the NAICS code 52, which corresponds to Finance and Insurance.
Yes, Prosper Marketplace has an official profile on Crunchbase, which can be accessed here: https://www.crunchbase.com/organization/prosper.
Yes, Prosper Marketplace maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/prosper-marketplace.
As of December 19, 2025, Rankiteo reports that Prosper Marketplace has experienced 7 cybersecurity incidents.
Prosper Marketplace has an estimated 30,660 peer or competitor companies worldwide.
Incident Types: The types of cybersecurity incidents that have occurred include Cyber Attack and Breach.
Detection and Response: The company detects and responds to cybersecurity incidents through an incident response plan activated with yes (immediately upon detection), and law enforcement notified with yes (committed to full compliance), and containment measures with unauthorized access contained by 2023-09-02, and remediation measures with improving security controls, remediation measures with offering free credit monitoring to affected individuals, and communication strategy with dedicated faq page for the attack, communication strategy with commitment to share updates as investigation progresses, and and containment measures with attack blocked by 2024-09-02, and recovery measures with implementation of additional security controls and safeguards, and communication strategy with breach notification published on 2024-09-17, ongoing updates to customers, and enhanced monitoring with more robust monitoring and security alerting, and and third party assistance with partnerships with cybersecurity firms, and remediation measures with enhanced monitoring, remediation measures with fortified defenses, and recovery measures with credit monitoring services for affected users, and communication strategy with notification to affected parties, and and remediation measures with offering free credit monitoring to affected individuals, and communication strategy with faq page updates, communication strategy with customer notifications for data verification and protective measures, and incident response plan activated with yes, and third party assistance with leading cybersecurity firm (prosper); fbi and ftc notified (700credit), and law enforcement notified with yes (prosper), law enforcement notified with yes (700credit), and containment measures with unauthorized activity stopped, additional security and monitoring controls deployed (prosper); unauthorized access identified and contained (700credit), and remediation measures with enhanced security measures, credit monitoring and identity restoration services offered (prosper); credit monitoring services offered (700credit), and communication strategy with official notices issued, affected individuals notified, regulatory filings submitted, and enhanced monitoring with yes..
Title: Prosper Marketplace Data Breach
Description: The California Office of the Attorney General reported that Prosper Marketplace, Inc. experienced a data breach on October 3, 2018. The breach was reported on November 26, 2018.
Date Detected: 2018-10-03
Date Publicly Disclosed: 2018-11-26
Type: Data Breach
Title: Prosper Peer-to-Peer Lending Platform Data Breach (September 2023)
Description: A cyberattack on Prosper, a peer-to-peer lending platform, resulted in the exposure of sensitive personal and proprietary data of up to 17.6 million individuals, according to HaveIBeenPwned (HIBP). The breach included email addresses, browser user agent details, credit status, dates of birth, employment statuses, government-issued IDs, income levels, IP addresses, names, physical addresses, and Social Security numbers. Customer accounts and funds were reportedly unaffected, and platform operations remained uninterrupted. Prosper confirmed unauthorized access was contained by September 2, 2023, but the investigation into the full scope and timeline of the intrusion is ongoing. Affected individuals will be offered free credit monitoring services once the data verification process is complete.
Date Publicly Disclosed: 2023-09
Date Resolved: 2023-09-02
Type: Data Breach
Title: Prosper Market Data Breach Affects 17.6M Individuals
Description: Hackers stole personal information pertaining to more than 17 million individuals from peer-to-peer lending marketplace Prosper. Exposed data included names, dates of birth, contact information (physical and email addresses), Social Security numbers, credit status, employment, and income details. The breach was detected in mid-September 2024, with the attack blocked by September 2. Prosper is investigating and implementing additional security controls, including robust monitoring and alerting. No unauthorized access to customer accounts or funds was reported, and operations remain uninterrupted.
Date Detected: 2024-09-01T00:00:00Z
Date Publicly Disclosed: 2024-09-17
Type: Data Breach
Title: Prosper Data Breach Exposes 17.6 Million Records
Description: Peer-to-peer (P2P) lending company Prosper has reportedly fallen victim to a significant cyberattack, during which malicious actors compromised and exfiltrated highly sensitive personal data belonging to over 17 million individuals.
Type: Data Breach
Title: Data Breach at Prosper Peer-to-Peer Lending Platform
Description: A significant data breach at Prosper, a prominent peer-to-peer lending platform, exposed the personal information of approximately 17 million users. The incident involved unauthorized access to systems compromising sensitive data, including names, addresses, email addresses, Social Security numbers, and government-issued IDs. While no customer accounts or funds were accessed, the breach highlights vulnerabilities in fintech infrastructures and the potential for widespread identity theft.
Date Publicly Disclosed: 2025-09
Type: data breach
Attack Vector: exploitation of backend system weaknessesstealthy data exfiltration
Vulnerability Exploited: weaknesses in backend systems
Title: Prosper Data Breach - Unauthorized Database Queries Expose Customer and Applicant Data
Description: Prosper, a peer-to-peer lending marketplace, suffered a data breach on September 2nd due to unauthorized queries on company databases storing customer and applicant data. The breach exposed highly sensitive personal information, including names, Social Security numbers, government-issued IDs, employment and credit status, income levels, birth dates, physical addresses, IP addresses, and browser user-agent details. While no customer accounts or funds were accessed and operations remained uninterrupted, the breach affected 17.6 million unique email addresses. The exposed data poses significant risks for phishing and identity theft.
Date Detected: 2023-09-02
Type: Data Breach
Attack Vector: Unauthorized database queries
Title: Prosper Marketplace Cybersecurity Incident and 700Credit Data Exposure
Description: Two recent cybersecurity incidents involving financial services providers have exposed the personal information of millions of individuals. Prosper Marketplace confirmed unauthorized activity affecting 13.1 million people, while 700Credit reported a data exposure impacting over 5.8 million individuals.
Date Detected: 2025-09-012025-10-25
Date Publicly Disclosed: 2025-11-012025-11-01
Type: Data Breach
Common Attack Types: The most common types of attacks the company has faced is Breach.

Data Compromised: Email addresses, Browser user agent details, Credit status information, Dates of birth, Employment statuses, Government-issued ids, Income levels, Ip addresses, Names, Physical addresses, Social security numbers
Downtime: None (customer-facing operations unaffected)
Operational Impact: None reported
Brand Reputation Impact: Potential reputational damage (scale: up to 17.6 million affected individuals)
Identity Theft Risk: High (due to exposure of PII, including SSNs)
Payment Information Risk: None (customer accounts and funds reported safe)

Data Compromised: Names, Dates of birth, Physical addresses, Email addresses (17.6m unique, 2.8m newly exposed), Social security numbers, Credit status, Employment details, Income details
Systems Affected: Company databases storing customer and applicant data
Operational Impact: None (customer-facing operations uninterrupted)
Brand Reputation Impact: Potential reputational damage due to exposure of sensitive personal data
Identity Theft Risk: High (due to exposure of SSNs and PII)

Data Compromised: Highly sensitive personal data
Identity Theft Risk: High (due to sensitive personal data exposure)

Data Compromised: Names, Addresses, Email addresses, Social security numbers, Government-issued ids
Systems Affected: backend systems
Operational Impact: no disruption to customer-facing operations
Brand Reputation Impact: potential erosion of trust in peer-to-peer lending models
Legal Liabilities: potential class-action lawsuits
Identity Theft Risk: ['high risk of identity theft', 'synthetic identity fraud', 'targeted phishing campaigns', 'fraudulent loan applications']

Data Compromised: Names, Social security numbers, Government-issued ids, Employment status, Credit status, Income levels, Birth dates, Physical addresses, Ip addresses, Browser user-agent details, Email addresses (17.6 million unique)
Systems Affected: Company databases storing customer and applicant data
Downtime: None (customer-facing operations not interrupted)
Operational Impact: None reported
Brand Reputation Impact: Potential reputational damage due to exposure of sensitive personal data
Identity Theft Risk: High (exposed PII can be used for identity theft)
Payment Information Risk: None (no customer accounts or funds accessed)

Data Compromised: Sensitive personal and financial data, including names, Social Security numbers, national ID numbers, dates of birth, bank account numbers, Prosper account numbers, financial application details, driver’s license numbers, passports, tax information, and payment card numbers (Prosper); names, Social Security numbers, dates of birth, and physical addresses (700Credit)
Brand Reputation Impact: High
Legal Liabilities: Potential regulatory fines and legal actions
Identity Theft Risk: High
Payment Information Risk: High (Prosper)
Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Personal Identifiable Information (Pii), Proprietary/Confidential Information, , Personally Identifiable Information (Pii), Financial Data (Credit Status, Income), Employment Data, , Highly sensitive personal data, Personally Identifiable Information (Pii), Sensitive Personal Data, , Personally Identifiable Information (Pii), Financial-Related Data (Employment Status, Credit Status, Income Levels), , Personal Identifiable Information (Pii), Financial Data and .

Entity Name: Prosper Marketplace, Inc.
Entity Type: Company
Industry: Financial Services
Location: California, USA

Entity Name: Prosper Marketplace, Inc.
Entity Type: Peer-to-Peer Lending Platform
Industry: Financial Services (Fintech)
Location: San Francisco, California, USA
Size: Founded in 2005; facilitated $28B+ in loans
Customers Affected: Up to 17.6 million (unconfirmed; under investigation)

Entity Name: Prosper Marketplace
Entity Type: Fintech (Peer-to-Peer Lending Platform)
Industry: Finance & Banking
Location: San Francisco, California, USA
Size: Large (2.3M+ customers, $29B in originated loans)
Customers Affected: 17.6 million individuals (customers and prospective customers)

Entity Name: Prosper
Entity Type: Company
Industry: Financial Services (Peer-to-Peer Lending)
Customers Affected: 17.6 million

Entity Name: Prosper
Entity Type: peer-to-peer lending platform
Industry: fintech
Customers Affected: 17 million users (17.6 million unique email addresses exposed)

Entity Name: Prosper
Entity Type: Peer-to-peer lending marketplace
Industry: Financial Services (Fintech)
Customers Affected: 17.6 million unique email addresses (exact number of individuals unclear)

Entity Name: Prosper Marketplace
Entity Type: Fintech Company
Industry: Financial Services
Location: San Francisco, California, USA
Size: Large
Customers Affected: 13,100,000

Entity Name: 700Credit
Entity Type: Credit Reporting and Compliance Solutions Provider
Industry: Financial Services
Location: Michigan, USA
Size: Large
Customers Affected: 5,836,521

Incident Response Plan Activated: Yes (immediately upon detection)
Law Enforcement Notified: Yes (committed to full compliance)
Containment Measures: Unauthorized access contained by 2023-09-02
Remediation Measures: Improving security controlsOffering free credit monitoring to affected individuals
Communication Strategy: Dedicated FAQ page for the attackCommitment to share updates as investigation progresses

Incident Response Plan Activated: True
Containment Measures: Attack blocked by 2024-09-02
Recovery Measures: Implementation of additional security controls and safeguards
Communication Strategy: Breach notification published on 2024-09-17, ongoing updates to customers
Enhanced Monitoring: More robust monitoring and security alerting

Incident Response Plan Activated: True
Third Party Assistance: Partnerships With Cybersecurity Firms.
Remediation Measures: enhanced monitoringfortified defenses
Recovery Measures: credit monitoring services for affected users
Communication Strategy: notification to affected parties

Remediation Measures: Offering free credit monitoring to affected individuals
Communication Strategy: FAQ page updatesCustomer notifications for data verification and protective measures

Incident Response Plan Activated: Yes
Third Party Assistance: Leading cybersecurity firm (Prosper); FBI and FTC notified (700Credit)
Law Enforcement Notified: Yes (Prosper), Yes (700Credit),
Containment Measures: Unauthorized activity stopped, additional security and monitoring controls deployed (Prosper); unauthorized access identified and contained (700Credit)
Remediation Measures: Enhanced security measures, credit monitoring and identity restoration services offered (Prosper); credit monitoring services offered (700Credit)
Communication Strategy: Official notices issued, affected individuals notified, regulatory filings submitted
Enhanced Monitoring: Yes
Incident Response Plan: The company's incident response plan is described as Yes (immediately upon detection), , , Yes.
Third-Party Assistance: The company involves third-party assistance in incident response through partnerships with cybersecurity firms, , Leading cybersecurity firm (Prosper); FBI and FTC notified (700Credit).

Type of Data Compromised: Personal identifiable information (pii), Proprietary/confidential information
Number of Records Exposed: Up to 17.6 million (unconfirmed; HIBP claim)
Sensitivity of Data: High (includes SSNs, government IDs, financial/employment details)
Data Exfiltration: Likely (data posted on HIBP)
Personally Identifiable Information: NamesEmail addressesPhysical addressesDates of birthSocial Security numbersGovernment-issued IDsIP addressesEmployment statusesIncome levelsCredit statusBrowser user agent details

Type of Data Compromised: Personally identifiable information (pii), Financial data (credit status, income), Employment data
Number of Records Exposed: 17,600,000
Sensitivity of Data: High (includes SSNs, financial, and employment details)

Type of Data Compromised: Highly sensitive personal data
Number of Records Exposed: 17.6 million
Sensitivity of Data: High

Type of Data Compromised: Personally identifiable information (pii), Sensitive personal data
Number of Records Exposed: 17.6 million unique email addresses (17 million individuals affected)
Sensitivity of Data: high (includes Social Security numbers and government-issued IDs)

Type of Data Compromised: Personally identifiable information (pii), Financial-related data (employment status, credit status, income levels)
Number of Records Exposed: 17.6 million unique email addresses (total individuals unspecified)
Sensitivity of Data: High (includes SSNs, government IDs, and financial/employment details)
Data Exfiltration: Yes (data was stolen)
Personally Identifiable Information: NamesSocial Security numbersGovernment-issued IDsBirth datesPhysical addressesIP addresses

Type of Data Compromised: Personal identifiable information (pii), Financial data
Number of Records Exposed: 13,100,000 (Prosper), 5,836,521 (700Credit)
Sensitivity of Data: High
Data Exfiltration: Yes (attackers made copies of data in 700Credit incident)
Personally Identifiable Information: Names, Social Security numbers, dates of birth, physical addresses, driver’s license numbers, passports, tax information, bank account numbers, payment card numbers
Prevention of Data Exfiltration: The company takes the following measures to prevent data exfiltration: Improving security controls, Offering free credit monitoring to affected individuals, , enhanced monitoring, fortified defenses, , Offering free credit monitoring to affected individuals, , Enhanced security measures, credit monitoring and identity restoration services offered (Prosper); credit monitoring services offered (700Credit).
Handling of PII Incidents: The company handles incidents involving personally identifiable information (PII) through by unauthorized access contained by 2023-09-02, attack blocked by 2024-09-02, , unauthorized activity stopped and additional security and monitoring controls deployed (prosper); unauthorized access identified and contained (700credit).

Data Exfiltration: True

Data Exfiltration: True

Data Exfiltration: Yes (700Credit)
Data Recovery from Ransomware: The company recovers data encrypted by ransomware through Implementation of additional security controls and safeguards, , credit monitoring services for affected users, .

Regulatory Notifications: Likely (standard US data breach notification protocols)

Legal Actions: potential class-action lawsuits,

Regulations Violated: State-level breach notification laws, Potential FTC regulations,
Regulatory Notifications: FTC notified (700Credit)State AG offices to be notified (700Credit)
Ensuring Regulatory Compliance: The company ensures compliance with regulatory requirements through potential class-action lawsuits, .

Lessons Learned: Prioritize multi-factor authentication (MFA), Conduct regular penetration testing, Implement robust data encryption, Adopt zero-trust architectures, Strengthen threat intelligence sharing among financial institutions, Balance innovation with security protocols

Lessons Learned: Financial services providers and fintech companies are increasingly targeted for the volume and sensitivity of data they hold. Enhanced monitoring and rapid incident response are critical to mitigating risks.

Recommendations: Enhance security controls to prevent future incidents, Expedite investigation to confirm scope and notify affected individuals, Provide transparent updates to maintain customer trustEnhance security controls to prevent future incidents, Expedite investigation to confirm scope and notify affected individuals, Provide transparent updates to maintain customer trustEnhance security controls to prevent future incidents, Expedite investigation to confirm scope and notify affected individuals, Provide transparent updates to maintain customer trust

Recommendations: Enhance cybersecurity measures, including multi-factor authentication and data encryption, Conduct regular penetration testing and vulnerability assessments, Adopt zero-trust security models, Improve data governance and monitoring practices, Foster collaboration for proactive threat intelligence sharing, Prepare for long-term support for affected users (e.g., credit monitoring)Enhance cybersecurity measures, including multi-factor authentication and data encryption, Conduct regular penetration testing and vulnerability assessments, Adopt zero-trust security models, Improve data governance and monitoring practices, Foster collaboration for proactive threat intelligence sharing, Prepare for long-term support for affected users (e.g., credit monitoring)Enhance cybersecurity measures, including multi-factor authentication and data encryption, Conduct regular penetration testing and vulnerability assessments, Adopt zero-trust security models, Improve data governance and monitoring practices, Foster collaboration for proactive threat intelligence sharing, Prepare for long-term support for affected users (e.g., credit monitoring)Enhance cybersecurity measures, including multi-factor authentication and data encryption, Conduct regular penetration testing and vulnerability assessments, Adopt zero-trust security models, Improve data governance and monitoring practices, Foster collaboration for proactive threat intelligence sharing, Prepare for long-term support for affected users (e.g., credit monitoring)Enhance cybersecurity measures, including multi-factor authentication and data encryption, Conduct regular penetration testing and vulnerability assessments, Adopt zero-trust security models, Improve data governance and monitoring practices, Foster collaboration for proactive threat intelligence sharing, Prepare for long-term support for affected users (e.g., credit monitoring)Enhance cybersecurity measures, including multi-factor authentication and data encryption, Conduct regular penetration testing and vulnerability assessments, Adopt zero-trust security models, Improve data governance and monitoring practices, Foster collaboration for proactive threat intelligence sharing, Prepare for long-term support for affected users (e.g., credit monitoring)

Recommendations: Change passwords for Prosper and related financial accounts (use strong, unique passwords and a password manager), Enable two-factor/multi-factor authentication on all applicable accounts, Monitor for phishing attempts (avoid clicking unexpected links/attachments), Enroll in identity theft protection/monitoring services, Contact Prosper to verify what personal data was exposed and utilize offered credit monitoringChange passwords for Prosper and related financial accounts (use strong, unique passwords and a password manager), Enable two-factor/multi-factor authentication on all applicable accounts, Monitor for phishing attempts (avoid clicking unexpected links/attachments), Enroll in identity theft protection/monitoring services, Contact Prosper to verify what personal data was exposed and utilize offered credit monitoringChange passwords for Prosper and related financial accounts (use strong, unique passwords and a password manager), Enable two-factor/multi-factor authentication on all applicable accounts, Monitor for phishing attempts (avoid clicking unexpected links/attachments), Enroll in identity theft protection/monitoring services, Contact Prosper to verify what personal data was exposed and utilize offered credit monitoringChange passwords for Prosper and related financial accounts (use strong, unique passwords and a password manager), Enable two-factor/multi-factor authentication on all applicable accounts, Monitor for phishing attempts (avoid clicking unexpected links/attachments), Enroll in identity theft protection/monitoring services, Contact Prosper to verify what personal data was exposed and utilize offered credit monitoringChange passwords for Prosper and related financial accounts (use strong, unique passwords and a password manager), Enable two-factor/multi-factor authentication on all applicable accounts, Monitor for phishing attempts (avoid clicking unexpected links/attachments), Enroll in identity theft protection/monitoring services, Contact Prosper to verify what personal data was exposed and utilize offered credit monitoring

Recommendations: Affected individuals should monitor their credit reports, report suspicious activity, and utilize offered credit monitoring services. Companies should strengthen security controls and ensure compliance with regulatory requirements.
Key Lessons Learned: The key lessons learned from past incidents are Prioritize multi-factor authentication (MFA),Conduct regular penetration testing,Implement robust data encryption,Adopt zero-trust architectures,Strengthen threat intelligence sharing among financial institutions,Balance innovation with security protocolsFinancial services providers and fintech companies are increasingly targeted for the volume and sensitivity of data they hold. Enhanced monitoring and rapid incident response are critical to mitigating risks.
Implemented Recommendations: The company has implemented the following recommendations to improve cybersecurity: Affected individuals should monitor their credit reports, report suspicious activity and and utilize offered credit monitoring services. Companies should strengthen security controls and ensure compliance with regulatory requirements..

Source: California Office of the Attorney General

Source: The Register

Source: HaveIBeenPwned (HIBP)

Source: Prosper FAQ Page (Incident Response)

Source: Information Media Group (IMG)

Source: Have I Been Pwned (Troy Hunt)

Source: Prosper Marketplace Breach Notification (2024-09-17)

Source: Troy Hunt (Security Expert)

Source: TechRepublic

Source: Have I Been Pwned (Troy Hunt)

Source: Malwarebytes

Source: BleepingComputer

Source: Prosper FAQs

Source: SecurityWeek

Source: Infosecurity Magazine

Source: BankInfoSecurity

Source: CyberInsider

Source: JoinTheCase

Source: Prosper FAQ Page

Source: BleepingComputer

Source: Tom's Guide

Source: Prosper Marketplace Official Notice

Source: 700Credit Notice
Additional Resources: Stakeholders can find additional resources on cybersecurity best practices at and Source: California Office of the Attorney General, and Source: The Register, and Source: HaveIBeenPwned (HIBP), and Source: Prosper FAQ Page (Incident Response), and Source: Information Media Group (IMG), and Source: Have I Been Pwned (Troy Hunt)Url: https://haveibeenpwned.com, and Source: Prosper Marketplace Breach Notification (2024-09-17), and Source: Troy Hunt (Security Expert), and Source: TechRepublic, and Source: Have I Been Pwned (Troy Hunt), and Source: Malwarebytes, and Source: BleepingComputer, and Source: Prosper FAQs, and Source: SecurityWeek, and Source: Infosecurity Magazine, and Source: BankInfoSecurity, and Source: CyberInsider, and Source: JoinTheCase, and Source: Prosper FAQ Page, and Source: BleepingComputer, and Source: Tom's Guide, and Source: Prosper Marketplace Official Notice, and Source: 700Credit Notice.

Investigation Status: Ongoing (early stages; data verification in progress)

Investigation Status: Ongoing (as of 2024-09-17)

Investigation Status: ongoing (legal investigations and potential lawsuits unfolding)

Investigation Status: Ongoing
Communication of Investigation Status: The company communicates the status of incident investigations to stakeholders through Dedicated Faq Page For The Attack, Commitment To Share Updates As Investigation Progresses, Breach Notification Published On 2024-09-17, Ongoing Updates To Customers, Notification To Affected Parties, Faq Page Updates, Customer Notifications For Data Verification And Protective Measures, Official notices issued, affected individuals notified and regulatory filings submitted.

Stakeholder Advisories: Limited (FAQ page; no detailed public statements beyond containment confirmation)
Customer Advisories: Free credit monitoring to be offered post-investigation

Stakeholder Advisories: Customers and prospective customers notified via breach notification
Customer Advisories: Encouraged to monitor accounts and credit reports; no evidence of unauthorized access to funds

Customer Advisories: notification of breachoffer of credit monitoring services

Customer Advisories: Check with Prosper for details on exposed dataUtilize free credit monitoring offered by ProsperFollow password hygiene and MFA best practicesStay vigilant against phishing/social engineering attacks

Stakeholder Advisories: Dealers advised to consult legal counsel for state-level breach notification compliance (700Credit).
Customer Advisories: Affected individuals urged to remain vigilant, monitor credit reports, and report suspicious activity.
Advisories Provided: The company provides the following advisories to stakeholders and customers following an incident: were Limited (FAQ page; no detailed public statements beyond containment confirmation), Free credit monitoring to be offered post-investigation, Customers and prospective customers notified via breach notification, Encouraged to monitor accounts and credit reports; no evidence of unauthorized access to funds, Notification Of Breach, Offer Of Credit Monitoring Services, , Check With Prosper For Details On Exposed Data, Utilize Free Credit Monitoring Offered By Prosper, Follow Password Hygiene And Mfa Best Practices, Stay Vigilant Against Phishing/Social Engineering Attacks, , Dealers advised to consult legal counsel for state-level breach notification compliance (700Credit)., Affected individuals urged to remain vigilant, monitor credit reports and and report suspicious activity..

High Value Targets: Customer Databases,
Data Sold on Dark Web: Customer Databases,

High Value Targets: Personal Data (Pii),
Data Sold on Dark Web: Personal Data (Pii),

High Value Targets: Customer And Applicant Databases,
Data Sold on Dark Web: Customer And Applicant Databases,

Corrective Actions: Improving Security Controls (Unspecified), Credit Monitoring For Affected Individuals,

Corrective Actions: Enhanced Monitoring And Security Alerting,

Root Causes: Weaknesses In Backend Systems, Inadequate Detection Of Stealthy Data Exfiltration,
Corrective Actions: Enhanced Monitoring, Partnerships With Cybersecurity Firms, Adoption Of Zero-Trust Architectures (Recommended), Implementation Of Multi-Factor Authentication (Recommended), Regular Penetration Testing (Recommended),

Root Causes: Unauthorized Queries On Company Databases (Potential Insider Threat, Misconfigured Access Controls, Or Exploited Vulnerabilities),

Corrective Actions: Additional security and monitoring controls deployed (Prosper); enhanced security measures and credit monitoring services (700Credit)
Post-Incident Analysis Process: The company's process for conducting post-incident analysis is described as More Robust Monitoring And Security Alerting, , Partnerships With Cybersecurity Firms, , , Leading cybersecurity firm (Prosper); FBI and FTC notified (700Credit), Yes.
Corrective Actions Taken: The company has taken the following corrective actions based on post-incident analysis: Improving Security Controls (Unspecified), Credit Monitoring For Affected Individuals, , Enhanced Monitoring And Security Alerting, , Enhanced Monitoring, Partnerships With Cybersecurity Firms, Adoption Of Zero-Trust Architectures (Recommended), Implementation Of Multi-Factor Authentication (Recommended), Regular Penetration Testing (Recommended), , Additional security and monitoring controls deployed (Prosper); enhanced security measures and credit monitoring services (700Credit).
Most Recent Incident Detected: The most recent incident detected was on 2018-10-03.
Most Recent Incident Publicly Disclosed: The most recent incident publicly disclosed was on 2025-11-01.
Most Recent Incident Resolved: The most recent incident resolved was on 2023-09-02.
Most Significant Data Compromised: The most significant data compromised in an incident were Email addresses, Browser user agent details, Credit status information, Dates of birth, Employment statuses, Government-issued IDs, Income levels, IP addresses, Names, Physical addresses, Social Security numbers, , Names, Dates of Birth, Physical Addresses, Email Addresses (17.6M unique, 2.8M newly exposed), Social Security Numbers, Credit Status, Employment Details, Income Details, , Highly sensitive personal data, names, addresses, email addresses, Social Security numbers, government-issued IDs, , Names, Social Security numbers, Government-issued IDs, Employment status, Credit status, Income levels, Birth dates, Physical addresses, IP addresses, Browser user-agent details, Email addresses (17.6 million unique), , Sensitive personal and financial data, including names, Social Security numbers, national ID numbers, dates of birth, bank account numbers, Prosper account numbers, financial application details, driver’s license numbers, passports, tax information, and payment card numbers (Prosper); names, Social Security numbers, dates of birth and and physical addresses (700Credit).
Most Significant System Affected: The most significant system affected in an incident was Company databases storing customer and applicant data and backend systems and Company databases storing customer and applicant data.
Third-Party Assistance in Most Recent Incident: The third-party assistance involved in the most recent incident was partnerships with cybersecurity firms, , Leading cybersecurity firm (Prosper); FBI and FTC notified (700Credit).
Containment Measures in Most Recent Incident: The containment measures taken in the most recent incident were Unauthorized access contained by 2023-09-02, Attack blocked by 2024-09-02, Unauthorized activity stopped and additional security and monitoring controls deployed (Prosper); unauthorized access identified and contained (700Credit).
Most Sensitive Data Compromised: The most sensitive data compromised in a breach were Credit status information, Physical addresses, addresses, Social Security Numbers, Credit status, Employment status, government-issued IDs, Dates of Birth, Browser user-agent details, Email Addresses (17.6M unique, 2.8M newly exposed), email addresses, Email addresses (17.6 million unique), Names, Email addresses, Dates of birth, Sensitive personal and financial data, including names, Social Security numbers, national ID numbers, dates of birth, bank account numbers, Prosper account numbers, financial application details, driver’s license numbers, passports, tax information, and payment card numbers (Prosper); names, Social Security numbers, dates of birth, and physical addresses (700Credit), Employment statuses, Social Security numbers, Birth dates, Government-issued IDs, Physical Addresses, Browser user agent details, Credit Status, Income levels, Highly sensitive personal data, IP addresses, names, Employment Details and Income Details.
Number of Records Exposed in Most Significant Breach: The number of records exposed in the most significant breach was 123.9M.
Most Significant Legal Action: The most significant legal action taken for a regulatory violation was potential class-action lawsuits, .
Most Significant Lesson Learned: The most significant lesson learned from past incidents was Balance innovation with security protocols, Financial services providers and fintech companies are increasingly targeted for the volume and sensitivity of data they hold. Enhanced monitoring and rapid incident response are critical to mitigating risks.
Most Significant Recommendation Implemented: The most significant recommendation implemented to improve cybersecurity was Improve data governance and monitoring practices, Enroll in identity theft protection/monitoring services, Conduct regular penetration testing and vulnerability assessments, Expedite investigation to confirm scope and notify affected individuals, Affected individuals should monitor their credit reports, report suspicious activity, and utilize offered credit monitoring services. Companies should strengthen security controls and ensure compliance with regulatory requirements., Change passwords for Prosper and related financial accounts (use strong, unique passwords and a password manager), Adopt zero-trust security models, Prepare for long-term support for affected users (e.g., credit monitoring), Enable two-factor/multi-factor authentication on all applicable accounts, Monitor for phishing attempts (avoid clicking unexpected links/attachments), Enhance security controls to prevent future incidents, Enhance cybersecurity measures, including multi-factor authentication and data encryption, Provide transparent updates to maintain customer trust, Foster collaboration for proactive threat intelligence sharing and Contact Prosper to verify what personal data was exposed and utilize offered credit monitoring.
Most Recent Source: The most recent source of information about an incident are SecurityWeek, Have I Been Pwned (Troy Hunt), Prosper FAQs, Malwarebytes, The Register, JoinTheCase, HaveIBeenPwned (HIBP), BleepingComputer, Information Media Group (IMG), Prosper FAQ Page, CyberInsider, BankInfoSecurity, Tom's Guide, TechRepublic, Prosper Marketplace Official Notice, Prosper FAQ Page (Incident Response), Prosper Marketplace Breach Notification (2024-09-17), Troy Hunt (Security Expert), Infosecurity Magazine, California Office of the Attorney General and 700Credit Notice.
Most Recent URL for Additional Resources: The most recent URL for additional resources on cybersecurity best practices is https://haveibeenpwned.com .
Current Status of Most Recent Investigation: The current status of the most recent investigation is Ongoing (early stages; data verification in progress).
Most Recent Stakeholder Advisory: The most recent stakeholder advisory issued was Limited (FAQ page; no detailed public statements beyond containment confirmation), Customers and prospective customers notified via breach notification, Dealers advised to consult legal counsel for state-level breach notification compliance (700Credit)., .
Most Recent Customer Advisory: The most recent customer advisory issued were an Free credit monitoring to be offered post-investigation, Encouraged to monitor accounts and credit reports; no evidence of unauthorized access to funds, notification of breachoffer of credit monitoring services, Check with Prosper for details on exposed dataUtilize free credit monitoring offered by ProsperFollow password hygiene and MFA best practicesStay vigilant against phishing/social engineering attacks, Affected individuals urged to remain vigilant, monitor credit reports and and report suspicious activity.
Most Significant Root Cause: The most significant root cause identified in post-incident analysis was weaknesses in backend systemsinadequate detection of stealthy data exfiltration, Unauthorized queries on company databases (potential insider threat, misconfigured access controls, or exploited vulnerabilities).
Most Significant Corrective Action: The most significant corrective action taken based on post-incident analysis was Improving security controls (unspecified)Credit monitoring for affected individuals, Enhanced monitoring and security alerting, enhanced monitoringpartnerships with cybersecurity firmsadoption of zero-trust architectures (recommended)implementation of multi-factor authentication (recommended)regular penetration testing (recommended), Additional security and monitoring controls deployed (Prosper); enhanced security measures and credit monitoring services (700Credit).
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