Comparison Overview

Walmart

VS

Post Office Ltd

Walmart

702 SW 8th St, Bentonville, Arkansas, US, 72712
Last Update: 2025-12-09
Between 800 and 849

Sixty years ago, Sam Walton started a single mom-and-pop shop and transformed it into the world’s biggest retailer. Since those founding days, one thing has remained consistent: our commitment to helping our customers save money so they can live better. Today, we’re reinventing the shopping experience and our associates are at the heart of it. When you join our Walmart family of brands, you’ll play a crucial role in shaping the future of retail, improving millions of lives around the world. We are ecstatic to have been named a Great Place to Work® Certified May 2023 – May 2024, Disability: IN 2023 Best Places to Work, and Fast Company 100 Best Workplaces for Innovators 2023. This is that place where your passions meet purpose. Join our family and build a career you’re proud of.

NAICS: 43
NAICS Definition: Retail Trade
Employees: 562,029
Subsidiaries: 26
12-month incidents
0
Known data breaches
7
Attack type number
2

Post Office Ltd

100 Wood Street, London, EC2V 7ER, GB
Last Update: 2025-12-09
Between 750 and 799

We’ve come a long way since it all started over 380 years ago. We’ve built up a network of 11,500 branches across the country. To give you a sense of how big that is, we’ve got more branches than the four biggest banks in the UK put together. Or put simply, we’re the largest retail network in the UK. So we’re there for our customers, wherever they are. But our biggest branch by far is our website, which gets nearly 1 million visitors a week, so we’re building on our digital strategy too. As you can imagine, a business this big has lots of opportunities in lots of different areas. So we’re always looking out for enthusiastic, ambitious and customer-focused people to join us. And we’re striving to become “simpler to run, better for customers and a great place to work”, so innovation is really important. We’re confident the changes we make will be for the best, benefiting both our people and our customers. Social Media Policy: https://bit.ly/3gwSgEl

NAICS: 43
NAICS Definition: Retail Trade
Employees: 16,578
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/walmart.jpeg
Walmart
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/post-office.jpeg
Post Office Ltd
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
Walmart
100%
Compliance Rate
0/4 Standards Verified
Post Office Ltd
0%
Compliance Rate
0/4 Standards Verified

Benchmark & Cyber Underwriting Signals

Incidents vs Retail Industry Average (This Year)

No incidents recorded for Walmart in 2025.

Incidents vs Retail Industry Average (This Year)

No incidents recorded for Post Office Ltd in 2025.

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

Walmart cyber incidents detection timeline including parent company and subsidiaries

Incident History — Post Office Ltd (X = Date, Y = Severity)

Post Office Ltd cyber incidents detection timeline including parent company and subsidiaries

Notable Incidents

Last 3 Security & Risk Events by Company

https://images.rankiteo.com/companyimages/walmart.jpeg
Walmart
Incidents

Date Detected: 4/2025
Type:Ransomware
Attack Vector: Zero-day vulnerabilities in MOVEit and Cleo file transfer software
Motivation: Data extortion
Blog: Blog

Date Detected: 1/2024
Type:Breach
Attack Vector: Hacking
Blog: Blog

Date Detected: 12/2023
Type:Breach
Attack Vector: External System Breach (Hacking)
Blog: Blog
https://images.rankiteo.com/companyimages/post-office.jpeg
Post Office Ltd
Incidents

No Incident

FAQ

Walmart company demonstrates a stronger AI Cybersecurity Score compared to Post Office Ltd company, reflecting its advanced cybersecurity posture governance and monitoring frameworks.

Walmart company has historically faced a number of disclosed cyber incidents, whereas Post Office Ltd company has not reported any.

In the current year, Walmart company has reported more cyber incidents than Post Office Ltd company.

Walmart company has confirmed experiencing a ransomware attack, while Post Office Ltd company has not reported such incidents publicly.

Walmart company has disclosed at least one data breach, while the other Post Office Ltd company has not reported such incidents publicly.

Neither Post Office Ltd company nor Walmart company has reported experiencing targeted cyberattacks publicly.

Neither Walmart company nor Post Office Ltd company has reported experiencing or disclosing vulnerabilities publicly.

Neither Walmart nor Post Office Ltd holds any compliance certifications.

Neither company holds any compliance certifications.

Walmart company has more subsidiaries worldwide compared to Post Office Ltd company.

Walmart company employs more people globally than Post Office Ltd company, reflecting its scale as a Retail.

Neither Walmart nor Post Office Ltd holds SOC 2 Type 1 certification.

Neither Walmart nor Post Office Ltd holds SOC 2 Type 2 certification.

Neither Walmart nor Post Office Ltd holds ISO 27001 certification.

Neither Walmart nor Post Office Ltd holds PCI DSS certification.

Neither Walmart nor Post Office Ltd holds HIPAA certification.

Neither Walmart nor Post Office Ltd holds GDPR certification.

Latest Global CVEs (Not Company-Specific)

Description

FreePBX Endpoint Manager is a module for managing telephony endpoints in FreePBX systems. Versions prior to 16.0.96 and 17.0.1 through 17.0.9 have a weak default password. By default, this is a 6 digit numeric value which can be brute forced. (This is the app_password parameter). Depending on local configuration, this password could be the extension, voicemail, user manager, DPMA or EPM phone admin password. This issue is fixed in versions 16.0.96 and 17.0.10.

Risk Information
cvss4
Base: 6.9
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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

Neuron is a PHP framework for creating and orchestrating AI Agents. In versions 2.8.11 and below, the MySQLWriteTool executes arbitrary SQL provided by the caller using PDO::prepare() + execute() without semantic restrictions. This is consistent with the name (“write tool”), but in an LLM/agent context it becomes a high-risk capability: prompt injection or indirect prompt manipulation can cause execution of destructive queries such as DROP TABLE, TRUNCATE, DELETE, ALTER, or privilege-related statements (subject to DB permissions). Deployments that expose an agent with MySQLWriteTool enabled to untrusted input and/or run the tool with a DB user that has broad privileges are impacted. This issue is fixed in version 2.8.12.

Risk Information
cvss3
Base: 9.4
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
Description

Neuron is a PHP framework for creating and orchestrating AI Agents. Versions 2.8.11 and below use MySQLSelectTool, which is vulnerable to Read-Only Bypass. MySQLSelectTool is intended to be a read-only SQL tool (e.g., for LLM agent querying, however, validation based on the first keyword (e.g., SELECT) and a forbidden-keyword list does not block file-writing constructs such as INTO OUTFILE / INTO DUMPFILE. As a result, an attacker who can influence the tool input (e.g., via prompt injection through a public agent endpoint) may write arbitrary files to the DB server if the MySQL/MariaDB account has the FILE privilege and server configuration permits writes to a useful location (e.g., a web-accessible directory). This issue is fixed in version 2.8.12.

Risk Information
cvss3
Base: 8.2
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N
Description

Okta Java Management SDK facilitates interactions with the Okta management API. In versions 11.0.0 through 20.0.0, race conditions may arise from concurrent requests using the ApiClient class. This could cause a status code or response header from one request’s response to influence another request’s response. This issue is fixed in version 20.0.1.

Risk Information
cvss3
Base: 8.4
Severity: HIGH
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L
Description

The Auth0 Next.js SDK is a library for implementing user authentication in Next.js applications. When using versions 4.11.0 through 4.11.2 and 4.12.0, simultaneous requests on the same client may result in improper lookups in the TokenRequestCache for the request results. This issue is fixed in versions 4.11.2 and 4.12.1.

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