Paychex
Company Details
Linkedin ID:
paychex
Website:
Employees number:
18,432
Number of followers:
229,580
NAICS:
541612
Industry Type:
Homepage:
paychex.com
IP Addresses:
195
Company ID:
PAY_2440450
Scan Status:
Completed
Paychex Company CyberSecurity Posture
paychex.com
As the future of work continues to evolve, Paychex leads the way by making complex HR, payroll, and benefits brilliantly simple. Our unique combination of digital HR technology and advisory solutions meets the changing needs of employers and their employees. You can see the results in our growth as an HR leader and the positive returns we deliver to our shareholders. Paychex, Inc. (Nasdaq: PAYX) is a leading provider of integrated human capital management solutions for payroll, benefits, human resources, and insurance services. -Industry expertise since 1971 ~740,000 business clients in the U.S. and Europe -Pays 1 in 12 U.S. private sector employees -A top HR outsourcer — serving 2.2M worksite employees through our HR outsourcing solutions Information regarding money transmitter licensing can be found on the NMLS Consumer Access website, www.nmlsconsumeraccess.org, and Paychex at www.paychex.com/corporate/legal. The Commissioner of Financial Regulation for the State of Maryland will accept all questions or complaints from Maryland residents regarding Paychex, Inc. (1029977) at: 100 S. Charles Street, Tower I, Suite 5300 Baltimore, Maryland 21201 888-784-0136
Paychex A.I CyberSecurity Scoring
Paychex Risk Score (AI oriented)Between 700 and 749
Paychex
Updated:
- Powered by our proprietary A.I cyber incident model
- Insurance preferes TPRM score to calculate premium
Paychex Global Score (TPRM)XXXX
Paychex
- Instant access to detailed risk factors
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- Vulnerabilities
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Paychex Company CyberSecurity News & History
Past Incidents
2
Attack Types
1
Paychex Inc.
Breach
Rankiteo Explanation
Attack limited on finance or reputation
Description: In 2024, Paychex Inc. faced a data breach that led to a proposed consumer class action lawsuit. The lead plaintiff, Colleen Waterman, alleged that Paychex negligently failed to protect her personal information, but the case was dismissed by Judge Joseph F. Leeson of the US District Court for the Eastern District of Pennsylvania. The judge ruled that Waterman did not demonstrate sufficient evidence linking her claimed injuries to the breach. While the lawsuit was dismissed without prejudice—allowing for an amended complaint—the incident highlights potential exposure of personal data. A separate lawsuit related to the same breach was voluntarily withdrawn by plaintiffs in August 2024. The breach did not result in confirmed data theft or financial harm to individuals, but it raised concerns over data security practices at Paychex, a major payroll and HR services provider. The lack of concrete evidence of stolen or misused data suggests the impact was limited to reputational and legal scrutiny rather than direct financial or operational damage.
Paychex, Inc.
Breach
Rankiteo Explanation
Attack with significant impact with customers data leaks
Description: The California Office of the Attorney General reported a data breach involving Paychex, Inc. on May 9, 2024. The breach, which occurred on March 22, 2024, resulted in the unauthorized exposure of personal information, including full names and Social Security numbers. Approximately UNKN individuals were affected.
Paychex Company Scoring based on AI Models
Cyber Incidents Likelihood 3 - 6 - 9 months
A.I Risk Score Likelihood 3 - 6 - 9 months
Underwriter Stats for Paychex
Incidents vs Human Resources Services Industry Average (This Year)
No incidents recorded for Paychex in 2025.
Incidents vs All-Companies Average (This Year)
No incidents recorded for Paychex in 2025.
Incident Types Paychex vs Human Resources Services Industry Avg (This Year)
No incidents recorded for Paychex in 2025.
Incident History — Paychex (X = Date, Y = Severity)
Paychex cyber incidents detection timeline including parent company and subsidiaries
Paychex Company Subsidiaries
As the future of work continues to evolve, Paychex leads the way by making complex HR, payroll, and benefits brilliantly simple. Our unique combination of digital HR technology and advisory solutions meets the changing needs of employers and their employees. You can see the results in our growth as an HR leader and the positive returns we deliver to our shareholders. Paychex, Inc. (Nasdaq: PAYX) is a leading provider of integrated human capital management solutions for payroll, benefits, human resources, and insurance services. -Industry expertise since 1971 ~740,000 business clients in the U.S. and Europe -Pays 1 in 12 U.S. private sector employees -A top HR outsourcer — serving 2.2M worksite employees through our HR outsourcing solutions Information regarding money transmitter licensing can be found on the NMLS Consumer Access website, www.nmlsconsumeraccess.org, and Paychex at www.paychex.com/corporate/legal. The Commissioner of Financial Regulation for the State of Maryland will accept all questions or complaints from Maryland residents regarding Paychex, Inc. (1029977) at: 100 S. Charles Street, Tower I, Suite 5300 Baltimore, Maryland 21201 888-784-0136
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Paychex CyberSecurity News
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Frequently Asked Questions
Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.
Paychex CyberSecurity History Information
Official Website of Paychex
The official website of Paychex is https://www.paychex.com/.
Paychex’s AI-Generated Cybersecurity Score
According to Rankiteo, Paychex’s AI-generated cybersecurity score is 748, reflecting their Moderate security posture.
How many security badges does Paychex’ have ?
According to Rankiteo, Paychex currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.
Does Paychex have SOC 2 Type 1 certification ?
According to Rankiteo, Paychex is not certified under SOC 2 Type 1.
Does Paychex have SOC 2 Type 2 certification ?
According to Rankiteo, Paychex does not hold a SOC 2 Type 2 certification.
Does Paychex comply with GDPR ?
According to Rankiteo, Paychex is not listed as GDPR compliant.
Does Paychex have PCI DSS certification ?
According to Rankiteo, Paychex does not currently maintain PCI DSS compliance.
Does Paychex comply with HIPAA ?
According to Rankiteo, Paychex is not compliant with HIPAA regulations.
Does Paychex have ISO 27001 certification ?
According to Rankiteo,Paychex is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.
Industry Classification of Paychex
Paychex operates primarily in the Human Resources Services industry.
Number of Employees at Paychex
Paychex employs approximately 18,432 people worldwide.
Subsidiaries Owned by Paychex
Paychex presently has no subsidiaries across any sectors.
Paychex’s LinkedIn Followers
Paychex’s official LinkedIn profile has approximately 229,580 followers.
NAICS Classification of Paychex
Paychex is classified under the NAICS code 541612, which corresponds to Human Resources Consulting Services.
Paychex’s Presence on Crunchbase
Yes, Paychex has an official profile on Crunchbase, which can be accessed here: https://www.crunchbase.com/organization/paychex.
Paychex’s Presence on LinkedIn
Yes, Paychex maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/paychex.
Cybersecurity Incidents Involving Paychex
As of December 25, 2025, Rankiteo reports that Paychex has experienced 2 cybersecurity incidents.
Number of Peer and Competitor Companies
Paychex has an estimated 4,326 peer or competitor companies worldwide.
What types of cybersecurity incidents have occurred at Paychex ?
Incident Types: The types of cybersecurity incidents that have occurred include Breach.
How does Paychex detect and respond to cybersecurity incidents ?
Detection and Response: The company detects and responds to cybersecurity incidents through an communication strategy with legal defense in class action lawsuit..
Incident Details
Can you provide details on each incident ?
Title: Paychex, Inc. Data Breach
Description: The California Office of the Attorney General reported a data breach involving Paychex, Inc. on May 9, 2024. The breach, which occurred on March 22, 2024, resulted in the unauthorized exposure of personal information, including full names and Social Security numbers. Approximately UNKN individuals were affected.
Date Detected: 2024-03-22
Date Publicly Disclosed: 2024-05-09
Type: Data Breach
Title: Paychex Inc. 2024 Data Breach Class Action Dismissal
Description: Paychex Inc. successfully defeated a proposed consumer class action over a 2024 data breach after a federal judge ruled that the lead plaintiff, Colleen Waterman, lacked standing to bring the suit. Judge Joseph F. Leeson of the US District Court for the Eastern District of Pennsylvania found that Waterman failed to demonstrate that her injuries were caused by Paychex’s allegedly negligent failure to protect her personal information. The case was dismissed without prejudice, allowing Waterman to file an amended complaint. A separate lawsuit over the breach was voluntarily dismissed by plaintiffs in August 2024.
Type: Data Breach
What are the most common types of attacks the company has faced ?
Common Attack Types: The most common types of attacks the company has faced is Breach.
Impact of the Incidents
What was the impact of each incident ?
Incident : Data Breach PAY406072525
Data Compromised: Full names, Social security numbers
Incident : Data Breach PAY1792317102325
Data Compromised: Personal information
Customer Complaints: ['Class Action Lawsuit (Dismissed)', 'Separate Lawsuit (Voluntarily Dismissed in August 2024)']
Legal Liabilities: Class Action Lawsuit Dismissal (Without Prejudice)Potential Amended Complaint
What types of data are most commonly compromised in incidents ?
Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Full Names, Social Security Numbers, , Personal Information and .
Which entities were affected by each incident ?
Incident : Data Breach PAY406072525
Entity Name: Paychex, Inc.
Entity Type: Company
Industry: Payroll and Human Resources
Customers Affected: UNKN
Incident : Data Breach PAY1792317102325
Entity Name: Paychex Inc.
Entity Type: Corporation
Industry: Payroll and Human Resources Services
Location: United States
Response to the Incidents
What measures were taken in response to each incident ?
Incident : Data Breach PAY1792317102325
Communication Strategy: Legal Defense in Class Action Lawsuit
Data Breach Information
What type of data was compromised in each breach ?
Incident : Data Breach PAY406072525
Type of Data Compromised: Full names, Social security numbers
Number of Records Exposed: UNKN
Sensitivity of Data: High
Incident : Data Breach PAY1792317102325
Type of Data Compromised: Personal information
Regulatory Compliance
Were there any regulatory violations and fines imposed for each incident ?
Incident : Data Breach PAY1792317102325
Legal Actions: Class Action Lawsuit (Dismissed Without Prejudice), Separate Lawsuit (Voluntarily Dismissed),
How does the company ensure compliance with regulatory requirements ?
Ensuring Regulatory Compliance: The company ensures compliance with regulatory requirements through Class Action Lawsuit (Dismissed Without Prejudice), Separate Lawsuit (Voluntarily Dismissed), .
References
Where can I find more information about each incident ?
Incident : Data Breach PAY406072525
Source: California Office of the Attorney General
Date Accessed: 2024-05-09
Incident : Data Breach PAY1792317102325
Source: US District Court for the Eastern District of Pennsylvania (Judge Joseph F. Leeson)
Where can stakeholders find additional resources on cybersecurity best practices ?
Additional Resources: Stakeholders can find additional resources on cybersecurity best practices at and Source: California Office of the Attorney GeneralDate Accessed: 2024-05-09, and Source: US District Court for the Eastern District of Pennsylvania (Judge Joseph F. Leeson).
Investigation Status
What is the current status of the investigation for each incident ?
Incident : Data Breach PAY1792317102325
Investigation Status: Ongoing (Potential Amended Complaint)
How does the company communicate the status of incident investigations to stakeholders ?
Communication of Investigation Status: The company communicates the status of incident investigations to stakeholders through Legal Defense In Class Action Lawsuit.
Additional Questions
Incident Details
What was the most recent incident detected ?
Most Recent Incident Detected: The most recent incident detected was on 2024-03-22.
What was the most recent incident publicly disclosed ?
Most Recent Incident Publicly Disclosed: The most recent incident publicly disclosed was on 2024-05-09.
Impact of the Incidents
What was the most significant data compromised in an incident ?
Most Significant Data Compromised: The most significant data compromised in an incident were full names, Social Security numbers, , Personal Information and .
Data Breach Information
What was the most sensitive data compromised in a breach ?
Most Sensitive Data Compromised: The most sensitive data compromised in a breach were Personal Information, full names and Social Security numbers.
What was the number of records exposed in the most significant breach ?
Number of Records Exposed in Most Significant Breach: The number of records exposed in the most significant breach was 0.
Regulatory Compliance
What was the most significant legal action taken for a regulatory violation ?
Most Significant Legal Action: The most significant legal action taken for a regulatory violation was Class Action Lawsuit (Dismissed Without Prejudice), Separate Lawsuit (Voluntarily Dismissed), .
References
What is the most recent source of information about an incident ?
Most Recent Source: The most recent source of information about an incident are US District Court for the Eastern District of Pennsylvania (Judge Joseph F. Leeson) and California Office of the Attorney General.
Investigation Status
What is the current status of the most recent investigation ?
Current Status of Most Recent Investigation: The current status of the most recent investigation is Ongoing (Potential Amended Complaint).
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Latest Global CVEs (Not Company-Specific)
Description
httparty is an API tool. In versions 0.23.2 and prior, httparty is vulnerable to SSRF. This issue can pose a risk of leaking API keys, and it can also allow third parties to issue requests to internal servers. This issue has been patched via commit 0529bcd.
Risk Information
cvss4
Base: 8.8
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Description
5ire is a cross-platform desktop artificial intelligence assistant and model context protocol client. In versions 0.15.2 and prior, an RCE vulnerability exists in useMarkdown.ts, where the markdown-it-mermaid plugin is initialized with securityLevel: 'loose'. This configuration explicitly permits the rendering of HTML tags within Mermaid diagram nodes. This issue has not been patched at time of publication.
Risk Information
cvss3
Base: 9.6
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Description
continuwuity is a Matrix homeserver written in Rust. Prior to version 0.5.0, this vulnerability allows a remote, unauthenticated attacker to force the target server to cryptographically sign arbitrary membership events. The flaw exists because the server fails to validate the origin of a signing request, provided the event's state_key is a valid user ID belonging to the target server. This issue has been patched in version 0.5.0. A workaround for this issue involves blocking access to the PUT /_matrix/federation/v2/invite/{roomId}/{eventId} endpoint using the reverse proxy.
Risk Information
cvss4
Base: 9.9
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Description
LangChain is a framework for building LLM-powered applications. Prior to @langchain/core versions 0.3.80 and 1.1.8, and prior to langchain versions 0.3.37 and 1.2.3, a serialization injection vulnerability exists in LangChain JS's toJSON() method (and subsequently when string-ifying objects using JSON.stringify(). The method did not escape objects with 'lc' keys when serializing free-form data in kwargs. The 'lc' key is used internally by LangChain to mark serialized objects. When user-controlled data contains this key structure, it is treated as a legitimate LangChain object during deserialization rather than plain user data. This issue has been patched in @langchain/core versions 0.3.80 and 1.1.8, and langchain versions 0.3.37 and 1.2.3
Risk Information
cvss3
Base: 8.6
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
References
- https://github.com/langchain-ai/langchainjs/commit/e5063f9c6e9989ea067dfdff39262b9e7b6aba62
- https://github.com/langchain-ai/langchainjs/releases/tag/%40langchain%2Fcore%401.1.8
- https://github.com/langchain-ai/langchainjs/releases/tag/langchain%401.2.3
- https://github.com/langchain-ai/langchainjs/security/advisories/GHSA-r399-636x-v7f6
Description
LangChain is a framework for building agents and LLM-powered applications. Prior to versions 0.3.81 and 1.2.5, a serialization injection vulnerability exists in LangChain's dumps() and dumpd() functions. The functions do not escape dictionaries with 'lc' keys when serializing free-form dictionaries. The 'lc' key is used internally by LangChain to mark serialized objects. When user-controlled data contains this key structure, it is treated as a legitimate LangChain object during deserialization rather than plain user data. This issue has been patched in versions 0.3.81 and 1.2.5.
Risk Information
cvss3
Base: 9.3
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
References
- https://github.com/langchain-ai/langchain/commit/5ec0fa69de31bbe3d76e4cf9cd65a6accb8466c8
- https://github.com/langchain-ai/langchain/commit/d9ec4c5cc78960abd37da79b0250f5642e6f0ce6
- https://github.com/langchain-ai/langchain/pull/34455
- https://github.com/langchain-ai/langchain/pull/34458
- https://github.com/langchain-ai/langchain/releases/tag/langchain-core%3D%3D0.3.81
- https://github.com/langchain-ai/langchain/releases/tag/langchain-core%3D%3D1.2.5
- https://github.com/langchain-ai/langchain/security/advisories/GHSA-c67j-w6g6-q2cm
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Identify exposed access points, detect misconfigured SSL certificates, and uncover vulnerabilities across the network infrastructure.
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Gain visibility into the software components used within an organization to detect vulnerabilities, manage risk, and ensure supply chain security.
CMDB (Configuration Management Database)
Monitor and manage all IT assets and their configurations to ensure accurate, real-time visibility across the company's technology environment.
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Leverage real-time insights on active threats, malware campaigns, and emerging vulnerabilities to proactively defend against evolving cyberattacks.
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