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For 60 years, TaxSlayer has been empowering Americans to take control of their taxes with easy-to-use, reliable software backed by U.S.-based support. Whether you're filing a simple return or managing self-employed income, TaxSlayer empowers you with the tools to file confidently and get your maximum refund guaranteed. As a team of customer-focused innovators and problem-solvers, TaxSlayer employees enjoy a dynamic workplace with comprehensive benefits including healthcare, dental, vision, 401(k), professional development, and even a child college fund. Interested? Apply today!

TaxSlayer A.I CyberSecurity Scoring

TaxSlayer

Company Details

Linkedin ID:

taxslayerllc

Employees number:

319

Number of followers:

3,276

NAICS:

5112

Industry Type:

Software Development

Homepage:

taxslayer.com

IP Addresses:

0

Company ID:

TAX_1107316

Scan Status:

In-progress

AI scoreTaxSlayer Risk Score (AI oriented)

Between 700 and 749

https://images.rankiteo.com/companyimages/taxslayerllc.jpeg
TaxSlayer Software Development
Updated:
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globalscoreTaxSlayer Global Score (TPRM)

XXXX

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TaxSlayer Software Development
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  • Benchmark vs. industry & size peers
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  • Findings

TaxSlayer Company CyberSecurity News & History

Past Incidents
2
Attack Types
1
EntityTypeSeverityImpactSeenBlog DetailsSupply Chain SourceIncident DetailsView
TaxSlayerBreach85410/2015NA
Rankiteo Explanation :
Attack with significant impact with customers data leaks

Description: The California Office of the Attorney General disclosed that TaxSlayer, a tax preparation service provider, suffered a data breach between October 10, 2015, and December 21, 2015, where an unauthorized third party gained access to user accounts. The incident exposed sensitive personal information, including names, addresses, and Social Security numbers (SSNs) of affected users. The breach was officially reported on January 29, 2016, though the exact number of impacted individuals was not specified in the announcement. The compromised data poses significant risks, such as identity theft, financial fraud, and long-term reputational harm to the company. Given the nature of the exposed information particularly SSNs victims may face prolonged vulnerabilities, including tax-related fraud and unauthorized credit applications. TaxSlayer likely faced regulatory scrutiny and potential legal repercussions due to the failure to protect customer data during the prolonged exposure period.

TaxSlayerBreach10056/2014NA
Rankiteo Explanation :
Attack threatening the organization's existence

Description: TaxSlayer, a tax preparation software publisher suffered by a data breach that affacted approximately 9,000 customers. The compromised data included the customers’ phone numbers, accounts address, social security number and other data containing 2014 tax return. TaxSlayer offered one year of free credit monitoring to all the affected customers.

TaxSlayer
Breach
Severity: 85
Impact: 4
Seen: 10/2015
Blog:
Supply Chain Source: NA
Rankiteo Explanation
Attack with significant impact with customers data leaks

Description: The California Office of the Attorney General disclosed that TaxSlayer, a tax preparation service provider, suffered a data breach between October 10, 2015, and December 21, 2015, where an unauthorized third party gained access to user accounts. The incident exposed sensitive personal information, including names, addresses, and Social Security numbers (SSNs) of affected users. The breach was officially reported on January 29, 2016, though the exact number of impacted individuals was not specified in the announcement. The compromised data poses significant risks, such as identity theft, financial fraud, and long-term reputational harm to the company. Given the nature of the exposed information particularly SSNs victims may face prolonged vulnerabilities, including tax-related fraud and unauthorized credit applications. TaxSlayer likely faced regulatory scrutiny and potential legal repercussions due to the failure to protect customer data during the prolonged exposure period.

TaxSlayer
Breach
Severity: 100
Impact: 5
Seen: 6/2014
Blog:
Supply Chain Source: NA
Rankiteo Explanation
Attack threatening the organization's existence

Description: TaxSlayer, a tax preparation software publisher suffered by a data breach that affacted approximately 9,000 customers. The compromised data included the customers’ phone numbers, accounts address, social security number and other data containing 2014 tax return. TaxSlayer offered one year of free credit monitoring to all the affected customers.

Ailogo

TaxSlayer Company Scoring based on AI Models

Cyber Incidents Likelihood 3 - 6 - 9 months

🔒
Incident Predictions locked
Access Monitoring Plan

A.I Risk Score Likelihood 3 - 6 - 9 months

🔒
A.I. Risk Score Predictions locked
Access Monitoring Plan
statics

Underwriter Stats for TaxSlayer

Incidents vs Software Development Industry Average (This Year)

No incidents recorded for TaxSlayer in 2026.

Incidents vs All-Companies Average (This Year)

No incidents recorded for TaxSlayer in 2026.

Incident Types TaxSlayer vs Software Development Industry Avg (This Year)

No incidents recorded for TaxSlayer in 2026.

Incident History — TaxSlayer (X = Date, Y = Severity)

TaxSlayer cyber incidents detection timeline including parent company and subsidiaries

TaxSlayer Company Subsidiaries

SubsidiaryImage

For 60 years, TaxSlayer has been empowering Americans to take control of their taxes with easy-to-use, reliable software backed by U.S.-based support. Whether you're filing a simple return or managing self-employed income, TaxSlayer empowers you with the tools to file confidently and get your maximum refund guaranteed. As a team of customer-focused innovators and problem-solvers, TaxSlayer employees enjoy a dynamic workplace with comprehensive benefits including healthcare, dental, vision, 401(k), professional development, and even a child college fund. Interested? Apply today!

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TaxSlayer CyberSecurity News

January 01, 2026 08:00 AM
TaxSlayer Introduces Calvin Culator to Take the Fear Out of Tax Season

TaxSlayer and Party Land launch File Fearlessly with Calvin Culator, using humor to simplify tax filing and build brand personality.

July 24, 2024 07:00 AM
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August 29, 2017 07:00 AM
Tax prep firm reaches settlement with FTC over cybersecurity lapses

TaxSlayer was one of a number of online tax prep outfits that were targeted in 2015 by cybercriminals using "list validation" attacks.

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faq

Frequently Asked Questions

Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.

TaxSlayer CyberSecurity History Information

Official Website of TaxSlayer

The official website of TaxSlayer is https://www.taxslayer.com/.

TaxSlayer’s AI-Generated Cybersecurity Score

According to Rankiteo, TaxSlayer’s AI-generated cybersecurity score is 745, reflecting their Moderate security posture.

How many security badges does TaxSlayer’ have ?

According to Rankiteo, TaxSlayer currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.

Has TaxSlayer been affected by any supply chain cyber incidents ?

According to Rankiteo, TaxSlayer has not been affected by any supply chain cyber incidents, and no incident IDs are currently listed for the organization.

Does TaxSlayer have SOC 2 Type 1 certification ?

According to Rankiteo, TaxSlayer is not certified under SOC 2 Type 1.

Does TaxSlayer have SOC 2 Type 2 certification ?

According to Rankiteo, TaxSlayer does not hold a SOC 2 Type 2 certification.

Does TaxSlayer comply with GDPR ?

According to Rankiteo, TaxSlayer is not listed as GDPR compliant.

Does TaxSlayer have PCI DSS certification ?

According to Rankiteo, TaxSlayer does not currently maintain PCI DSS compliance.

Does TaxSlayer comply with HIPAA ?

According to Rankiteo, TaxSlayer is not compliant with HIPAA regulations.

Does TaxSlayer have ISO 27001 certification ?

According to Rankiteo,TaxSlayer is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.

Industry Classification of TaxSlayer

TaxSlayer operates primarily in the Software Development industry.

Number of Employees at TaxSlayer

TaxSlayer employs approximately 319 people worldwide.

Subsidiaries Owned by TaxSlayer

TaxSlayer presently has no subsidiaries across any sectors.

TaxSlayer’s LinkedIn Followers

TaxSlayer’s official LinkedIn profile has approximately 3,276 followers.

NAICS Classification of TaxSlayer

TaxSlayer is classified under the NAICS code 5112, which corresponds to Software Publishers.

TaxSlayer’s Presence on Crunchbase

Yes, TaxSlayer has an official profile on Crunchbase, which can be accessed here: https://www.crunchbase.com/organization/taxslayer.

TaxSlayer’s Presence on LinkedIn

Yes, TaxSlayer maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/taxslayerllc.

Cybersecurity Incidents Involving TaxSlayer

As of January 24, 2026, Rankiteo reports that TaxSlayer has experienced 2 cybersecurity incidents.

Number of Peer and Competitor Companies

TaxSlayer has an estimated 28,180 peer or competitor companies worldwide.

What types of cybersecurity incidents have occurred at TaxSlayer ?

Incident Types: The types of cybersecurity incidents that have occurred include Breach.

How does TaxSlayer detect and respond to cybersecurity incidents ?

Detection and Response: The company detects and responds to cybersecurity incidents through an communication strategy with public disclosure via california office of the attorney general..

Incident Details

Can you provide details on each incident ?

Incident : Data Breach

Title: TaxSlayer Data Breach

Description: TaxSlayer, a tax preparation software publisher, suffered a data breach that affected approximately 9,000 customers. The compromised data included the customers’ phone numbers, account addresses, social security numbers, and other data from 2014 tax returns. TaxSlayer offered one year of free credit monitoring to all the affected customers.

Type: Data Breach

Incident : Data Breach

Title: TaxSlayer Data Breach (2015)

Description: The California Office of the Attorney General reported that TaxSlayer experienced a data breach in which an unauthorized third party may have accessed user accounts between October 10, 2015, and December 21, 2015. The breach potentially compromised users' personal information, including names, addresses, and Social Security numbers.

Date Publicly Disclosed: 2016-01-29

Type: Data Breach

Threat Actor: Unauthorized third party

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 TAX21414522

Data Compromised: Phone numbers, Account addresses, Social security numbers, 2014 tax return data

Incident : Data Breach TAX1008091725

Data Compromised: Names, Addresses, Social security numbers

Identity Theft Risk: High (SSNs compromised)

What types of data are most commonly compromised in incidents ?

Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Phone Numbers, Account Addresses, Social Security Numbers, 2014 Tax Return Data, , Personal Identifiable Information (Pii) and .

Which entities were affected by each incident ?

Incident : Data Breach TAX21414522

Entity Name: TaxSlayer

Entity Type: Company

Industry: Tax Preparation Software

Customers Affected: 9000

Incident : Data Breach TAX1008091725

Entity Name: TaxSlayer

Entity Type: Company

Industry: Tax Preparation Software

Location: United States (primarily California users reported)

Response to the Incidents

What measures were taken in response to each incident ?

Incident : Data Breach TAX1008091725

Communication Strategy: Public disclosure via California Office of the Attorney General

Data Breach Information

What type of data was compromised in each breach ?

Incident : Data Breach TAX21414522

Type of Data Compromised: Phone numbers, Account addresses, Social security numbers, 2014 tax return data

Number of Records Exposed: 9000

Sensitivity of Data: High

Incident : Data Breach TAX1008091725

Type of Data Compromised: Personal identifiable information (pii)

Sensitivity of Data: High

Data Exfiltration: Possible

Personally Identifiable Information: namesaddressesSocial Security numbers

Regulatory Compliance

Were there any regulatory violations and fines imposed for each incident ?

Incident : Data Breach TAX1008091725

Regulatory Notifications: California Office of the Attorney General

References

Where can I find more information about each incident ?

Incident : Data Breach TAX1008091725

Source: California Office of the Attorney General

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 General.

Investigation Status

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 Public disclosure via California Office of the Attorney General.

Additional Questions

General Information

Who was the attacking group in the last incident ?

Last Attacking Group: The attacking group in the last incident was an Unauthorized third party.

Incident Details

What was the most recent incident publicly disclosed ?

Most Recent Incident Publicly Disclosed: The most recent incident publicly disclosed was on 2016-01-29.

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 phone numbers, account addresses, social security numbers, 2014 tax return data, , names, addresses, Social Security numbers 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 Social Security numbers, 2014 tax return data, phone numbers, account addresses, social security numbers, names and addresses.

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 900.0.

References

What is the most recent source of information about an incident ?

Most Recent Source: The most recent source of information about an incident is California Office of the Attorney General.

cve

Latest Global CVEs (Not Company-Specific)

Description

Typemill is a flat-file, Markdown-based CMS designed for informational documentation websites. A reflected Cross-Site Scripting (XSS) exists in the login error view template `login.twig` of versions 2.19.1 and below. The `username` value can be echoed back without proper contextual encoding when authentication fails. An attacker can execute script in the login page context. This issue has been fixed in version 2.19.2.

Risk Information
cvss3
Base: 5.4
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Description

A DOM-based Cross-Site Scripting (XSS) vulnerability exists in the DomainCheckerApp class within domain/script.js of Sourcecodester Domain Availability Checker v1.0. The vulnerability occurs because the application improperly handles user-supplied data in the createResultElement method by using the unsafe innerHTML property to render domain search results.

Description

A Remote Code Execution (RCE) vulnerability exists in Sourcecodester Modern Image Gallery App v1.0 within the gallery/upload.php component. The application fails to properly validate uploaded file contents. Additionally, the application preserves the user-supplied file extension during the save process. This allows an unauthenticated attacker to upload arbitrary PHP code by spoofing the MIME type as an image, leading to full system compromise.

Description

A UNIX symbolic link following issue in the jailer component in Firecracker version v1.13.1 and earlier and 1.14.0 on Linux may allow a local host user with write access to the pre-created jailer directories to overwrite arbitrary host files via a symlink attack during the initialization copy at jailer startup, if the jailer is executed with root privileges. To mitigate this issue, users should upgrade to version v1.13.2 or 1.14.1 or above.

Risk Information
cvss3
Base: 6.0
Severity: LOW
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
cvss4
Base: 6.0
Severity: LOW
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:H/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

An information disclosure vulnerability exists in the /srvs/membersrv/getCashiers endpoint of the Aptsys gemscms backend platform thru 2025-05-28. This unauthenticated endpoint returns a list of cashier accounts, including names, email addresses, usernames, and passwords hashed using MD5. As MD5 is a broken cryptographic function, the hashes can be easily reversed using public tools, exposing user credentials in plaintext. This allows remote attackers to perform unauthorized logins and potentially gain access to sensitive POS operations or backend functions.

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Every week, Rankiteo analyzes billions of signals to give organizations a sharper, faster view of emerging risks. With deeper, more actionable intelligence at their fingertips, security teams can outpace threat actors, respond instantly to Zero-Day attacks, and dramatically shrink their risk exposure window.

These are some of the factors we use to calculate the overall score:

Network Security

Identify exposed access points, detect misconfigured SSL certificates, and uncover vulnerabilities across the network infrastructure.

SBOM (Software Bill of Materials)

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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