Comparison Overview

H&R Block

VS

CarMax

H&R Block

One H&R Block Way, None, Kansas City, MO, US, 64105
Last Update: 2025-11-22
Between 700 and 749

H&R Block’s purpose is simple: To provide help and inspire confidence in our clients and communities everywhere. We’ve been true to that purpose since brothers Henry and Richard Bloch founded our company in 1955. Since then, we’ve prepared approximately 800 million tax returns and grown to have approximately 12,000 offices throughout the United States and around the world. We know that tax needs and situations change from year to year. That’s why we offer new and innovative ways to prepare and file taxes so clients can choose what suits them best. We are a people company first and a tax company second. With this in mind, we deliver care in every interaction, conversation, and at each touchpoint. That’s how we build long-lasting relationships with clients, communities, and associates. People who join H&R Block say it feels like being part of something bigger. A place with an amazing and storied history, but with a strong and urgent focus on the future. Maybe it's because our company still has the feeling of ‘family’ serving as the foundation for our associates and franchisees who bring our purpose to life each day. Maybe it’s how determined, forward thinking and innovative we are, or how accessible our leadership is. We believe it’s all those things, and much more. Our ideas are rooted in unique and diverse perspectives fueled by curiosity and creativity. We’re not afraid to try new things, and never rest on past success. We are passionate in the way we advocate for each other, for our clients, and most importantly, we not only say we are better together…we truly believe it!

NAICS: 43
NAICS Definition: Retail Trade
Employees: 15,758
Subsidiaries: 0
12-month incidents
0
Known data breaches
1
Attack type number
1

CarMax

12800 Tuckahoe Creek Parkway, Richmond, Virginia, 23238, US
Last Update: 2025-11-21
Between 750 and 799

CarMax revolutionized the auto industry by delivering the honest, transparent and high-integrity car buying experience customers want and deserve. This disruptive thinking has helped us become the nation’s largest retailer of used cars with more than 240 stores nationwide. And thanks to our amazing team of nearly 30,000 associates, we have been recognized as one of the FORTUNE 100 Best Companies to Work For® - 20 years in a row! Committed to hiring people with strong values of integrity, transparency and respect, we offer unmatched training and support for associate career growth, and have been recognized as an award winner of Training Magazine’s "Apex Awards". We are also proud to be a best place to work for Veterans and recognized on Forbes Best Workplaces for Diversity list.

NAICS: 43
NAICS Definition: Retail Trade
Employees: 16,699
Subsidiaries: 0
12-month incidents
0
Known data breaches
0
Attack type number
0

Compliance Badges Comparison

Security & Compliance Standards Overview

https://images.rankiteo.com/companyimages/h&r-block.jpeg
H&R Block
ISO 27001
ISO 27001 certification not verified
Not verified
SOC2 Type 1
SOC2 Type 1 certification not verified
Not verified
SOC2 Type 2
SOC2 Type 2 certification not verified
Not verified
GDPR
GDPR certification not verified
Not verified
PCI DSS
PCI DSS certification not verified
Not verified
HIPAA
HIPAA certification not verified
Not verified
https://images.rankiteo.com/companyimages/carmax.jpeg
CarMax
ISO 27001
ISO 27001 certification not verified
Not verified
SOC2 Type 1
SOC2 Type 1 certification not verified
Not verified
SOC2 Type 2
SOC2 Type 2 certification not verified
Not verified
GDPR
GDPR certification not verified
Not verified
PCI DSS
PCI DSS certification not verified
Not verified
HIPAA
HIPAA certification not verified
Not verified
Compliance Summary
H&R Block
100%
Compliance Rate
0/4 Standards Verified
CarMax
0%
Compliance Rate
0/4 Standards Verified

Benchmark & Cyber Underwriting Signals

Incidents vs Retail Industry Average (This Year)

No incidents recorded for H&R Block in 2025.

Incidents vs Retail Industry Average (This Year)

No incidents recorded for CarMax in 2025.

Incident History — H&R Block (X = Date, Y = Severity)

H&R Block cyber incidents detection timeline including parent company and subsidiaries

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

CarMax cyber incidents detection timeline including parent company and subsidiaries

Notable Incidents

Last 3 Security & Risk Events by Company

https://images.rankiteo.com/companyimages/h&r-block.jpeg
H&R Block
Incidents

Date Detected: 5/2024
Type:Breach
Blog: Blog
https://images.rankiteo.com/companyimages/carmax.jpeg
CarMax
Incidents

No Incident

FAQ

CarMax company demonstrates a stronger AI Cybersecurity Score compared to H&R Block company, reflecting its advanced cybersecurity posture governance and monitoring frameworks.

H&R Block company has historically faced a number of disclosed cyber incidents, whereas CarMax company has not reported any.

In the current year, CarMax company and H&R Block company have not reported any cyber incidents.

Neither CarMax company nor H&R Block company has reported experiencing a ransomware attack publicly.

H&R Block company has disclosed at least one data breach, while the other CarMax company has not reported such incidents publicly.

Neither CarMax company nor H&R Block company has reported experiencing targeted cyberattacks publicly.

Neither H&R Block company nor CarMax company has reported experiencing or disclosing vulnerabilities publicly.

Neither H&R Block nor CarMax holds any compliance certifications.

Neither company holds any compliance certifications.

Neither H&R Block company nor CarMax company has publicly disclosed detailed information about the number of their subsidiaries.

CarMax company employs more people globally than H&R Block company, reflecting its scale as a Retail.

Neither H&R Block nor CarMax holds SOC 2 Type 1 certification.

Neither H&R Block nor CarMax holds SOC 2 Type 2 certification.

Neither H&R Block nor CarMax holds ISO 27001 certification.

Neither H&R Block nor CarMax holds PCI DSS certification.

Neither H&R Block nor CarMax holds HIPAA certification.

Neither H&R Block nor CarMax holds GDPR certification.

Latest Global CVEs (Not Company-Specific)

Description

Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to versions 19.2.16, 20.3.14, and 21.0.1, there is a XSRF token leakage via protocol-relative URLs in angular HTTP clients. The vulnerability is a Credential Leak by App Logic that leads to the unauthorized disclosure of the Cross-Site Request Forgery (XSRF) token to an attacker-controlled domain. Angular's HttpClient has a built-in XSRF protection mechanism that works by checking if a request URL starts with a protocol (http:// or https://) to determine if it is cross-origin. If the URL starts with protocol-relative URL (//), it is incorrectly treated as a same-origin request, and the XSRF token is automatically added to the X-XSRF-TOKEN header. This issue has been patched in versions 19.2.16, 20.3.14, and 21.0.1. A workaround for this issue involves avoiding using protocol-relative URLs (URLs starting with //) in HttpClient requests. All backend communication URLs should be hardcoded as relative paths (starting with a single /) or fully qualified, trusted absolute URLs.

Risk Information
cvss4
Base: 7.7
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N/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

Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. An Uncontrolled Recursion vulnerability in node-forge versions 1.3.1 and below enables remote, unauthenticated attackers to craft deep ASN.1 structures that trigger unbounded recursive parsing. This leads to a Denial-of-Service (DoS) via stack exhaustion when parsing untrusted DER inputs. This issue has been patched in version 1.3.2.

Risk Information
cvss4
Base: 8.7
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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

Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. An Integer Overflow vulnerability in node-forge versions 1.3.1 and below enables remote, unauthenticated attackers to craft ASN.1 structures containing OIDs with oversized arcs. These arcs may be decoded as smaller, trusted OIDs due to 32-bit bitwise truncation, enabling the bypass of downstream OID-based security decisions. This issue has been patched in version 1.3.2.

Risk Information
cvss4
Base: 6.3
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/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

Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. Prior to versions 7.0.13 and 8.0.2, working with large buffers in Lua scripts can lead to a stack overflow. Users of Lua rules and output scripts may be affected when working with large buffers. This includes a rule passing a large buffer to a Lua script. This issue has been patched in versions 7.0.13 and 8.0.2. A workaround for this issue involves disabling Lua rules and output scripts, or making sure limits, such as stream.depth.reassembly and HTTP response body limits (response-body-limit), are set to less than half the stack size.

Risk Information
cvss3
Base: 7.5
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description

Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. In versions from 8.0.0 to before 8.0.2, a NULL dereference can occur when the entropy keyword is used in conjunction with base64_data. This issue has been patched in version 8.0.2. A workaround involves disabling rules that use entropy in conjunction with base64_data.

Risk Information
cvss3
Base: 7.5
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H