Comparison Overview

Mazars in US

VS

Grant Thornton (US)

Mazars in US

135 West 50th Street, New York, New York, US, 10020
Last Update: 2025-11-24
Between 650 and 699

About Mazars Mazars is a leading international audit, tax and advisory firm, aspiring to build the economic foundations of a fair and prosperous world. Operating as a united partnership, Mazars works as one integrated team, leveraging expertise, scale and cultural understanding to deliver exceptional and tailored services in audit and accounting, as well as tax, financial advisory, consulting, sustainability and legal services*. Founded in Europe, Mazars is present in over 100 countries and territories, with more than 50,000 professionals – 33,000+ in our integrated partnership, 17,000+ via the Mazars North America Alliance – dedicated to helping clients make the most of business opportunities and operate with confidence. *where permitted under applicable country laws. Mazars USA LLP Mazars USA LLP is an independent member firm of Mazars Group, an international audit, tax and advisory organization with operations in 100+ countries and territories. With roots going back to 1921 in the US, the firm has significant national presence in strategic geographies, providing seamless access to 33,000+ professionals around the world. Our industry specialists deliver tailored services to a wide range of clients across sectors, including individuals, high-growth emerging companies, privately-owned businesses and large enterprises.

NAICS: 5412
NAICS Definition: Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Employees: 455
Subsidiaries: 0
12-month incidents
1
Known data breaches
2
Attack type number
1

Grant Thornton (US)

171 N. Clark Street, Suite 200, Chicago, IL, 60601, US
Last Update: 2025-11-21
Between 750 and 799

Forget what you think you know about professional services. We go beyond what’s expected and help others do the same. Grant Thornton is the brand name for Grant Thornton LLP and Grant Thornton Advisors LLC the U.S. member firms of Grant Thornton International Ltd, one of the world’s leading independent audit & assurance, tax and advisory firms. That means our network has more than 73,000 professionals in more than 146 countries who are ready to help public and private organizations of all sizes take on today’s challenges. But what sets us apart isn’t just what we do – it’s how we do it. Here, we believe in making business more personal and building trust into every result. We’re collaborators – obsessed with quality and ready for anything – who understand the value of strong relationships. It’s how we challenge the expectations of business and empower our people and clients to do it, too. One thing we won’t do? Grant Thornton will never request money or any form of payment for services via social media. Please report any concerns at 1-800-810-3503. Grant Thornton International Limited (GTIL) and the member firms, including Grant Thornton LLP and Grant Thornton Advisors LLC, are not a worldwide partnership. Services are delivered by the member firms. GTIL and its member firms are not agents of, and do not obligate, one another and are not liable for one another’s acts or omissions. Please see www.grantthornton.com for further details.​

NAICS: 5412
NAICS Definition: Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Employees: 11,931
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/mazarsinus.jpeg
Mazars in US
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/grant-thornton-llp.jpeg
Grant Thornton (US)
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
Mazars in US
100%
Compliance Rate
0/4 Standards Verified
Grant Thornton (US)
0%
Compliance Rate
0/4 Standards Verified

Benchmark & Cyber Underwriting Signals

Incidents vs Accounting Industry Average (This Year)

Mazars in US has 13.64% more incidents than the average of same-industry companies with at least one recorded incident.

Incidents vs Accounting Industry Average (This Year)

No incidents recorded for Grant Thornton (US) in 2025.

Incident History — Mazars in US (X = Date, Y = Severity)

Mazars in US cyber incidents detection timeline including parent company and subsidiaries

Incident History — Grant Thornton (US) (X = Date, Y = Severity)

Grant Thornton (US) cyber incidents detection timeline including parent company and subsidiaries

Notable Incidents

Last 3 Security & Risk Events by Company

https://images.rankiteo.com/companyimages/mazarsinus.jpeg
Mazars in US
Incidents

Date Detected: 10/2025
Type:Breach
Blog: Blog

Date Detected: 10/2012
Type:Breach
Attack Vector: Physical Theft (Stolen Laptop)
Blog: Blog
https://images.rankiteo.com/companyimages/grant-thornton-llp.jpeg
Grant Thornton (US)
Incidents

No Incident

FAQ

Grant Thornton (US) company demonstrates a stronger AI Cybersecurity Score compared to Mazars in US company, reflecting its advanced cybersecurity posture governance and monitoring frameworks.

Mazars in US company has historically faced a number of disclosed cyber incidents, whereas Grant Thornton (US) company has not reported any.

In the current year, Mazars in US company has reported more cyber incidents than Grant Thornton (US) company.

Neither Grant Thornton (US) company nor Mazars in US company has reported experiencing a ransomware attack publicly.

Mazars in US company has disclosed at least one data breach, while the other Grant Thornton (US) company has not reported such incidents publicly.

Neither Grant Thornton (US) company nor Mazars in US company has reported experiencing targeted cyberattacks publicly.

Neither Mazars in US company nor Grant Thornton (US) company has reported experiencing or disclosing vulnerabilities publicly.

Neither Mazars in US nor Grant Thornton (US) holds any compliance certifications.

Neither company holds any compliance certifications.

Neither Mazars in US company nor Grant Thornton (US) company has publicly disclosed detailed information about the number of their subsidiaries.

Grant Thornton (US) company employs more people globally than Mazars in US company, reflecting its scale as a Accounting.

Neither Mazars in US nor Grant Thornton (US) holds SOC 2 Type 1 certification.

Neither Mazars in US nor Grant Thornton (US) holds SOC 2 Type 2 certification.

Neither Mazars in US nor Grant Thornton (US) holds ISO 27001 certification.

Neither Mazars in US nor Grant Thornton (US) holds PCI DSS certification.

Neither Mazars in US nor Grant Thornton (US) holds HIPAA certification.

Neither Mazars in US nor Grant Thornton (US) 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