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 809 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 October 17, 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 32,966 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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809

/1000

Good

834

/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

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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bofaml.com

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NEWS

Marsh McLennan CyberSecurity News

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

July 29, 2026 07:00 AM

The energy sector’s OT cybersecurity talent is retiring faster than it can be replaced

OT cybersecurity in energy is where a safe shutdown still leaves plants down for weeks, from untested backups to internet-exposed assets.

Read Article

June 08, 2026 07:00 AM

Cyber insurance policyholders facing heavier scrutiny in underwriting, claims

A multiyear lull in insurance rates and insurers' over-dependence on large U.S. policyholders have led to more restrictions and exclusions...

Read Article

May 01, 2026 07:00 AM

10 cybersecurity trends to watch in 2026 and beyond

Stay ahead with 2026 cybersecurity trends, including AI attacks, cloud risks, quantum threats, and next-gen ransomware. Find out more.

Read Article

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

November 10, 2025 08:00 AM

Top 10 Companies in Cybersecurity Insurance Industry Safeguarding Digital Assets in 2025

Read Article

October 30, 2025 07:00 AM

Cybersecurity gaps threaten SA's booming retail sector

Beneath this digital renaissance lies a sobering reality: the cyber protection gap in South African retail has never been wider,...

Read Article

October 10, 2025 07:00 AM

Latest Trends in Cyber Threats

As we progress through 2025, the cyber threat landscape is increasingly complex for all organizations regardless of size or industry.

Read Article

October 07, 2025 07:00 AM

Nonprofits Protect People and Planet, Marsh McLennan Agency Protects Nonprofits

Brand Story – As stewards and employers, nonprofits need full-spectrum insurance strategies to succeed. Share this article!

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September 23, 2025 07:00 AM

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CVE

Latest

Global CVEs (Not Company-Specific)

CVE-2026-89096

SUMMARY

A flaw was found in nfs-utils. An unauthenticated remote attacker can trigger a Denial of Service (DoS) by sending repeated state notification requests to an exposed rpc.statd service. The service fails to properly release memory allocated during callback processing, leading to continuous memory growth. Sustained requests can exhaust system resources, eventually causing the service to degrade or crash.

Published

Date2026-10-16

Updated

Date2026-10-16

RISK INFORMATION (Score: 5.9)

cvss3

Base Score: 5.9

Complexity: HIGH

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

Impact Score

3.6

Exploitability

2.2

REFERENCES

CVE-2026-89088

SUMMARY

A flaw was found in parted. A heap-based buffer overflow exists in libparted's file system resizing logic when handling FAT16 volumes. By convincing a user or administrator to resize a specially crafted FAT16 file system image with malformed directory metadata, an attacker can trigger an oversized read into a fixed-size memory buffer. This issue causes memory corruption, resulting in an application crash and a denial of service (DoS).

Published

Date2026-10-16

Updated

Date2026-10-16

RISK INFORMATION (Score: 5.5)

cvss3

Base Score: 5.5

Complexity: LOW

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

Impact Score

3.6

Exploitability

1.8

REFERENCES

CVE-2026-89085

SUMMARY

A flaw was found in parted. A heap-based buffer overflow can occur when processing a specially crafted FAT32 filesystem due to an integer calculation error during buffer allocation. A local attacker could exploit this by enticing a user or automated service to open a malicious filesystem image, resulting in an application crash leading to a Denial of Service (DoS) or potential memory corruption.

Published

Date2026-10-16

Updated

Date2026-10-16

RISK INFORMATION (Score: 6.6)

cvss3

Base Score: 6.6

Complexity: LOW

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

Impact Score

4.7

Exploitability

1.8

REFERENCES

CVE-2026-17591

SUMMARY

A flaw was found in libarchive. An attacker can cause a Denial of Service (DoS) or potential information disclosure due to a use-after-free vulnerability, which occurs when a program reads memory that has already been released. This issue arises when the archive_entry_copy_mac_metadata() function deallocates an internal buffer before completing a data copy. An attacker who can supply input to an application utilizing this function can trigger the flaw to crash the application or read uninitialized memory data.

Published

Date2026-10-16

Updated

Date2026-10-16

RISK INFORMATION (Score: 3.6)

cvss3

Base Score: 3.6

Complexity: HIGH

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

Impact Score

2.5

Exploitability

REFERENCES

CVE-2026-111802

SUMMARY

A flaw was found in Nautilus. When a removable drive or disk image is unmounted or ejected, Nautilus prompts the user to empty the trash without verifying whether the trash directory paths are symbolic links. An attacker can exploit this flaw by tricking a user into mounting a crafted storage volume and confirming the prompt to empty the trash, leading to the arbitrary deletion of files accessible to that user.

Published

Date2026-10-16

Updated

Date2026-10-16

RISK INFORMATION (Score: 6.6)

cvss3

Base Score: 6.6

Complexity: LOW

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

Impact Score

5.2

Exploitability

1.3

REFERENCES

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Digital Assets

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 SecurityIdentify 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.

Threat IntelligenceLeverage real-time insights on active threats, malware campaigns, and emerging vulnerabilities to proactively defend against evolving cyberattacks.

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Marsh McLennan Vendor Cyber Rating & Cyber Score

Marsh McLennan A.I CyberSecurity Scoring

Marsh McLennan CyberSecurity News & History

Marsh McLennan Company Scoring based on AI Models

Cyber Incidents Likelihood 3 - 6 - 9 months

Incident Predictions locked

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

A.I. Risk Score Predictions locked

Underwriter Stats for Marsh McLennan

Incidents vs Financial Services Industry Avg (This Year)

Incidents vs All-Companies Average (This Year)

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

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

Marsh McLennan Subsidiaries

Parent Company

Marsh McLennan

Marsh McLennan Similar Companies

JPMorganChase

CreditEase

Capital One

Aboitiz Group

Truist

M&T Bank

Bank of America Merrill Lynch

MUFG

SBI Card

Marsh McLennan CyberSecurity News

The energy sector’s OT cybersecurity talent is retiring faster than it can be replaced

Cyber insurance policyholders facing heavier scrutiny in underwriting, claims

10 cybersecurity trends to watch in 2026 and beyond

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

Top 10 Companies in Cybersecurity Insurance Industry Safeguarding Digital Assets in 2025

Cybersecurity gaps threaten SA's booming retail sector

Latest Trends in Cyber Threats

Nonprofits Protect People and Planet, Marsh McLennan Agency Protects Nonprofits

Dragos Platform 3.0 accelerates OT cyber defense with AI-powered insights and faster workflows

Global CVEs (Not Company-Specific)

Access Data Using Our API

What Do We Measure ?

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

Rankiteo

Marsh McLennan CyberSecurity News & History

Marsh McLennan Company Scoring based on AI Models

Cyber Incidents Likelihood 3 - 6 - 9 months

Incident Predictions locked

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

A.I. Risk Score Predictions locked

Underwriter Stats for Marsh McLennan

Incidents vs Financial Services Industry Avg (This Year)

Incidents vs All-Companies Average (This Year)

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

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

Marsh McLennan Subsidiaries

Parent Company

Marsh McLennan

Marsh McLennan Similar Companies

JPMorganChase

CreditEase

Capital One

Aboitiz Group

Truist

M&T Bank

Bank of America Merrill Lynch

MUFG

SBI Card

Marsh McLennan CyberSecurity News

The energy sector’s OT cybersecurity talent is retiring faster than it can be replaced

Cyber insurance policyholders facing heavier scrutiny in underwriting, claims

10 cybersecurity trends to watch in 2026 and beyond

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

Top 10 Companies in Cybersecurity Insurance Industry Safeguarding Digital Assets in 2025

Cybersecurity gaps threaten SA's booming retail sector

Latest Trends in Cyber Threats

Nonprofits Protect People and Planet, Marsh McLennan Agency Protects Nonprofits

Dragos Platform 3.0 accelerates OT cyber defense with AI-powered insights and faster workflows

Global CVEs (Not Company-Specific)

Access Data Using Our API

What Do We Measure ?