What is the official website of Marsh McLennan ?

The official website of Marsh McLennan is http://www.corporate.marsh.com.

What is Marsh McLennan's cybersecurity risk score?

Marsh McLennan has an AI-generated cybersecurity risk score of 808 out of 1000, indicating a Good security posture according to Rankiteo's assessment.

How many security incidents has Marsh McLennan experienced?

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

Has Marsh McLennan been affected by any supply chain cyber incidents ?

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

Does Marsh McLennan have SOC 2 Type 1 certification ?

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

Does Marsh McLennan have SOC 2 Type 2 certification ?

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

Does Marsh McLennan comply with GDPR ?

According to Rankiteo, Marsh McLennan is not listed as GDPR compliant.

Does Marsh McLennan have PCI DSS certification ?

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

Does Marsh McLennan comply with HIPAA ?

According to Rankiteo, Marsh McLennan is not compliant with HIPAA regulations.

Does Marsh McLennan have ISO 27001 certification ?

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

Which industry does Marsh McLennan operate in ?

Marsh McLennan operates primarily in the Financial Services industry.

How many employees does Marsh McLennan have ?

Marsh McLennan employs approximately 45,730 people worldwide.

Does Marsh McLennan own any subsidiaries ?

Marsh McLennan presently has no subsidiaries across any sectors.

How many LinkedIn followers does Marsh McLennan have ?

Marsh McLennan's official LinkedIn profile has approximately 937,946 followers.

What is the NAICS classification code for Marsh McLennan ?

Marsh McLennan is classified under the NAICS code 52, which corresponds to Finance and Insurance.

Does Marsh McLennan have a Crunchbase profile ?

No, Marsh McLennan does not have a profile on Crunchbase.

Does Marsh McLennan have a LinkedIn profile ?

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

How many cybersecurity incidents has Marsh McLennan experienced ?

As of July 3, 2026, Rankiteo reports that Marsh McLennan has experienced 2 cybersecurity incidents.

How many peer or competitor companies does Marsh McLennan have ?

Marsh McLennan has an estimated 32,212 peer or competitor companies worldwide.

What types of cybersecurity incidents has Marsh McLennan faced ?

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

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Marsh McLennan

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808

/1000

Good

833

/1000

Good

Marsh McLennan Vendor Cyber Rating & Cyber Score

marsh.com

Add Your Compliance Badge

Marsh (NYSE: MRSH) is a global leader in risk, strategy and people, advising clients in 130 countries across four businesses: Marsh Risk, Guy Carpenter, Mercer and Oliver Wyman. With annual revenue over $24 billion and more than 90,000 colleagues, Marsh helps build the confidence to thrive through the power of perspective

Marsh McLennan A.I CyberSecurity Scoring

Scoring History

Marsh McLennan

Marsh McLennan CyberSecurity News & History

Past Incidents

Attack Types

Entity

Type

Severity

Impact

Seen

Blog Details

Supply Chain Source

Incident Details

View

Marsh McLennan

Data Leak

04/2021

MAR18242223

Marsh McLennan

Breach

6/2013

MAR307072525

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A.I.

Marsh McLennan Company Scoring based on AI Models

Cyber Incidents Likelihood 3 - 6 - 9 months

Actual

Prediction

Incident Predictions locked

Access Monitoring Plan

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

Actual

Prediction A

Prediction B

Prediction C

Prediction D

A.I. Risk Score Predictions locked

Access Monitoring Plan

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Underwriter Stats for Marsh McLennan

Incidents vs Financial Services Industry Avg (This Year)

No incidents recorded for Marsh McLennan in 2026.

Incidents vs All-Companies Average (This Year)

No incidents recorded for Marsh McLennan in 2026.

Incident Types Marsh McLennan vs Financial Services Industry Avg (This Year)

No incidents recorded for Marsh McLennan in 2026.

Incident History - Marsh McLennan (X = Date, Y = Severity)

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SUBSIDIARY

Marsh McLennan Subsidiaries

Parent Company

Marsh McLennan

Financial Services

Website: http://www.corporate.marsh.com

Company Size: 10,000+ employees

No subsidiary data available for this company.

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NEWS

Marsh McLennan CyberSecurity News

Latest updates, reports, and threat intel affecting the global network.

February 22, 2026 08:00 AM

Zero Trust: The effort that can protect against 95% of cyber attacks (Dayton expert)

A cybersecurity expert explains how Zero Trust protects against data theft and why most breaches succeed because security policies fail.

Read Article

January 09, 2026 05:41 PM

Best practices for cyber incident readiness

Incident response planning is one of the 12 cybersecurity controls that most cyber insurers ask Marsh clients about during the underwriting process.

Read Article

January 08, 2026 04:39 PM

2022 Marsh McLennan Semi-annual Cyber Handbook: 2nd Installment

The Marsh McLennan Cyber Handbook features perspectives from business leaders across Marsh McLennan who represent some of our best thinking about cyber...

Read Article

January 08, 2026 04:09 PM

Cybersecurity is an Organization-wide Responsibility

No single team should — or can — be the sole line of defense in an organization, especially when 95% of cybersecurity issues can be traced to human error.

Read Article

January 08, 2026 02:51 PM

Quantum Computing Will Breach Your Data Security

Quantum computing will become the biggest threat to data security, nullifying existing encryption standards.

Read Article

December 10, 2025 08:00 AM

Cyber Budgets to Get Hot: Can Marsh & McLennan Take the Advisory Lead?

Marsh & McLennan Companies, Inc.'s MMC arm, Marsh, recently released a global cybersecurity report titled the “Cyber catalyst report:...

Read Article

December 10, 2025 08:00 AM

Cyber risk investments to shape 2026 insurance market - Marsh

Organisations worldwide are increasing investments in cybersecurity, a trend expected to influence demand, capacity and pricing in the cyber...

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Most organizations plan to ramp up cybersecurity: Marsh

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CVE

Latest

Global CVEs (Not Company-Specific)

CVE-2026-57100

SUMMARY

Server-side request forgery (ssrf) in Microsoft Entra Provisioning Service (SyncFabric) allows an authorized attacker to elevate privileges over a network.

Published

Date2026-07-02

Updated

Date2026-07-02

RISK INFORMATION (Score: 9.9)

cvss3

Base Score: 9.9

Complexity: LOW

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Impact Score

Exploitability

3.1

REFERENCES

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57100

CVE-2026-54998

SUMMARY

Incorrect authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.

Published

Date2026-07-02

Updated

Date2026-07-02

RISK INFORMATION (Score: 8.8)

cvss3

Base Score: 8.8

Complexity: LOW

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score

5.9

Exploitability

2.8

REFERENCES

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54998

CVE-2026-45499

SUMMARY

Server-side request forgery (ssrf) in Azure OpenAI allows an authorized attacker to elevate privileges over a network.

Published

Date2026-07-02

Updated

Date2026-07-02

RISK INFORMATION (Score: 9.9)

cvss3

Base Score: 9.9

Complexity: LOW

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Impact Score

Exploitability

3.1

REFERENCES

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45499

CVE-2026-41106

SUMMARY

Url redirection to untrusted site ('open redirect') in M365 Copilot allows an unauthorized attacker to elevate privileges over a network.

Published

Date2026-07-02

Updated

Date2026-07-02

RISK INFORMATION (Score: 9.3)

cvss3

Base Score: 9.3

Complexity: LOW

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

Impact Score

5.8

Exploitability

2.8

REFERENCES

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-41106

CVE-2026-26145

SUMMARY

Improper access control in Azure Synapse allows an authorized attacker to elevate privileges over a network.

Published

Date2026-07-02

Updated

Date2026-07-02

RISK INFORMATION (Score: 4.8)

cvss3

Base Score: 4.8

Complexity: HIGH

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N

Impact Score

3.6

Exploitability

1.2

REFERENCES

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26145

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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.

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