MMA
Company Details
Linkedin ID:
marsh-mclennan-agency
Website:
Employees number:
14,372
Number of followers:
186,339
NAICS:
524
Industry Type:
Homepage:
marshmma.com
IP Addresses:
0
Company ID:
MAR_7429696
Scan Status:
In-progress
Internal validation & live display
Multiple badges & continuous verification
Faster underwriting decisions
Marsh McLennan Agency Vendor Cyber Rating & Cyber Score
marshmma.comMarsh McLennan Agency, a business of Marsh (NYSE: MRSH), is a leading provider of business insurance, employee health & benefits, retirement & wealth, and private client insurance solutions across the US and Canada. Marsh is a global leader in risk, reinsurance and capital, people and investments, and management consulting, advising clients in 130 countries. With annual revenue of over $24 billion and more than 90,000 colleagues, Marsh helps build the confidence to thrive through the power of perspective. For more information about Marsh McLennan Agency, visit marshmma.com.
Marsh McLennan Agency A.I CyberSecurity Scoring
MMA Risk Score (AI oriented)Between 750 and 799
MMA
Updated:
- Powered by our proprietary A.I cyber incident model
- Insurance preferes TPRM score to calculate premium
MMA Global Score (TPRM)XXXX
MMA
- Instant access to detailed risk factors
- Benchmark vs. industry & size peers
- Vulnerabilities
- Findings
MMA Company CyberSecurity News & History
Past Incidents
1
Attack Types
1
MMA Operations, Inc.
Breach
Rankiteo Explanation
Attack with significant impact with internal employee data leaks
Description: The California Office of the Attorney General reported a data breach involving MMA Operations, Inc. on September 1, 2022. The breach was discovered on March 26, 2021, and again on February 23, 2022, potentially affecting personal information of individuals, though the specific number of affected individuals is unknown. The breach involved the unauthorized access to personal information, which could include sensitive data such as names, addresses, and other personal identifiers. The exact nature and extent of the compromised data are not specified, but the incident highlights the vulnerability of personal information in the digital age.
MMA Company Scoring based on AI Models
Cyber Incidents Likelihood 3 - 6 - 9 months
A.I Risk Score Likelihood 3 - 6 - 9 months
Underwriter Stats for MMA
Incidents vs Insurance Industry Average (This Year)
No incidents recorded for Marsh McLennan Agency in 2026.
Incidents vs All-Companies Average (This Year)
No incidents recorded for Marsh McLennan Agency in 2026.
Incident Types MMA vs Insurance Industry Avg (This Year)
No incidents recorded for Marsh McLennan Agency in 2026.
Incident History — MMA (X = Date, Y = Severity)
MMA cyber incidents detection timeline including parent company and subsidiaries
MMA Company Subsidiaries
Marsh McLennan Agency, a business of Marsh (NYSE: MRSH), is a leading provider of business insurance, employee health & benefits, retirement & wealth, and private client insurance solutions across the US and Canada. Marsh is a global leader in risk, reinsurance and capital, people and investments, and management consulting, advising clients in 130 countries. With annual revenue of over $24 billion and more than 90,000 colleagues, Marsh helps build the confidence to thrive through the power of perspective. For more information about Marsh McLennan Agency, visit marshmma.com.
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MMA CyberSecurity News
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.
February 02, 2026 08:00 AM
Marsh McLennan Agency Acquires Robinson & Son
Marsh McLennan Agency (MMA), a business of Marsh (NYSE:MRSH) and a leading provider of business insurance, employee health and benefits,...
January 27, 2026 08:00 AM
(Just In) AFRL commander to keynote DBJ cyber/AI breakfast forum
The Power Breakfast event on AI and Cybersecurity will be held on Thursday, Feb. 12 from 7:30 a.m. to 9:30 a.m. at the Dayton Convention...
January 27, 2026 08:00 AM
Marsh McLennan Agency Launches Secure Harbor Group Captive to Help Senior Living Clients Manage Challenging Market Conditions
Marsh McLennan Agency (MMA), a business of Marsh (NYSE: MRSH) and a leading provider of business insurance, employee health and benefits,...
January 14, 2026 08:00 AM
What is Cyber Extortion? Types, Prevention & Response Tips
When cybercriminals hijack your data or website and demand a ransom, you become a victim of cyber extortion.
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.
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...
January 08, 2026 04:09 PM
Cybersecurity is an Organization-wide Responsibility
This article was first published by Oliver Wyman here. Although digital technologies have made society, government, and business more efficient and...
December 29, 2025 08:00 AM
Top National Insurance Journal Stories of 2025
Mergers and acquisitions were among big stories last year and they continued to catch the attention of readers in 2025.
Frequently Asked Questions
Explore insights on cybersecurity incidents, risk posture, and Rankiteo's assessments.
MMA CyberSecurity History Information
Official Website of Marsh McLennan Agency
The official website of Marsh McLennan Agency is https://www.marshmma.com/.
Marsh McLennan Agency’s AI-Generated Cybersecurity Score
According to Rankiteo, Marsh McLennan Agency’s AI-generated cybersecurity score is 758, reflecting their Fair security posture.
How many security badges does Marsh McLennan Agency’ have ?
According to Rankiteo, Marsh McLennan Agency currently holds 0 security badges, indicating that no recognized compliance certifications are currently verified for the organization.
Has Marsh McLennan Agency been affected by any supply chain cyber incidents ?
According to Rankiteo, Marsh McLennan Agency has not been affected by any supply chain cyber incidents, and no incident IDs are currently listed for the organization.
Does Marsh McLennan Agency have SOC 2 Type 1 certification ?
According to Rankiteo, Marsh McLennan Agency is not certified under SOC 2 Type 1.
Does Marsh McLennan Agency have SOC 2 Type 2 certification ?
According to Rankiteo, Marsh McLennan Agency does not hold a SOC 2 Type 2 certification.
Does Marsh McLennan Agency comply with GDPR ?
According to Rankiteo, Marsh McLennan Agency is not listed as GDPR compliant.
Does Marsh McLennan Agency have PCI DSS certification ?
According to Rankiteo, Marsh McLennan Agency does not currently maintain PCI DSS compliance.
Does Marsh McLennan Agency comply with HIPAA ?
According to Rankiteo, Marsh McLennan Agency is not compliant with HIPAA regulations.
Does Marsh McLennan Agency have ISO 27001 certification ?
According to Rankiteo,Marsh McLennan Agency is not certified under ISO 27001, indicating the absence of a formally recognized information security management framework.
Industry Classification of Marsh McLennan Agency
Marsh McLennan Agency operates primarily in the Insurance industry.
Number of Employees at Marsh McLennan Agency
Marsh McLennan Agency employs approximately 14,372 people worldwide.
Subsidiaries Owned by Marsh McLennan Agency
Marsh McLennan Agency presently has no subsidiaries across any sectors.
Marsh McLennan Agency’s LinkedIn Followers
Marsh McLennan Agency’s official LinkedIn profile has approximately 186,339 followers.
NAICS Classification of Marsh McLennan Agency
Marsh McLennan Agency is classified under the NAICS code 524, which corresponds to Insurance Carriers and Related Activities.
Marsh McLennan Agency’s Presence on Crunchbase
No, Marsh McLennan Agency does not have a profile on Crunchbase.
Marsh McLennan Agency’s Presence on LinkedIn
Yes, Marsh McLennan Agency maintains an official LinkedIn profile, which is actively utilized for branding and talent engagement, which can be accessed here: https://www.linkedin.com/company/marsh-mclennan-agency.
Cybersecurity Incidents Involving Marsh McLennan Agency
As of April 03, 2026, Rankiteo reports that Marsh McLennan Agency has experienced 1 cybersecurity incidents.
Number of Peer and Competitor Companies
Marsh McLennan Agency has an estimated 15,377 peer or competitor companies worldwide.
What types of cybersecurity incidents have occurred at Marsh McLennan Agency ?
Incident Types: The types of cybersecurity incidents that have occurred include Breach.
Incident Details
Can you provide details on each incident ?
Title: Data Breach at MMA Operations, Inc.
Description: The California Office of the Attorney General reported a data breach involving MMA Operations, Inc. on September 1, 2022. The breach was discovered on March 26, 2021, and again on February 23, 2022, potentially affecting personal information of individuals, though the specific number of affected individuals is unknown.
Date Detected: March 26, 2021February 23, 2022
Date Publicly Disclosed: September 1, 2022
Type: Data Breach
What are the most common types of attacks the company has faced ?
Common Attack Types: The most common types of attacks the company has faced is Breach.
Impact of the Incidents
What was the impact of each incident ?
Incident : Data Breach MAR401072525
Data Compromised: Personal Information
What types of data are most commonly compromised in incidents ?
Commonly Compromised Data Types: The types of data most commonly compromised in incidents are Personal Information.
Which entities were affected by each incident ?
Data Breach Information
What type of data was compromised in each breach ?
Incident : Data Breach MAR401072525
Type of Data Compromised: Personal Information
References
Where can I find more information about each incident ?
Incident : Data Breach MAR401072525
Source: California Office of the Attorney General
Where can stakeholders find additional resources on cybersecurity best practices ?
Additional Resources: Stakeholders can find additional resources on cybersecurity best practices at and Source: California Office of the Attorney General.
Additional Questions
Incident Details
What was the most recent incident detected ?
Most Recent Incident Detected: The most recent incident detected was on February 23, 2022.
What was the most recent incident publicly disclosed ?
Most Recent Incident Publicly Disclosed: The most recent incident publicly disclosed was on September 1, 2022.
Impact of the Incidents
What was the most significant data compromised in an incident ?
Most Significant Data Compromised: The most significant data compromised in an incident was Personal Information.
Data Breach Information
What was the most sensitive data compromised in a breach ?
Most Sensitive Data Compromised: The most sensitive data compromised in a breach was Personal Information.
References
What is the most recent source of information about an incident ?
Most Recent Source: The most recent source of information about an incident is California Office of the Attorney General.
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Latest Global CVEs (Not Company-Specific)
Description
Hirschmann EagleSDV version 05.4.01 prior to 05.4.02 contains a denial-of-service vulnerability that causes the device to crash during session establishment when using TLS 1.0 or TLS 1.1. Attackers can trigger a crash by initiating TLS connections with these protocol versions to disrupt service availability.
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
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
References
Description
The stored API keys in temporary browser client is not marked as protected allowing for JavScript console or other errors to allow for extraction of the encryption credentials.
Description
XSS vulnerability in cveInterface.js allows for inject HTML to be passed to display, as cveInterface trusts input from CVE API services
Description
Multiple reflected cross-site scripting (XSS) vulnerabilities in the login.php endpoint of Interzen Consulting S.r.l ZenShare Suite v17.0 allows attackers to execute arbitrary Javascript in the context of the user's browser via a crafted URL injected into the codice_azienda and red_url parameters.
Description
A reflected cross-site scripting (XSS) vulnerability in the login_newpwd.php endpoint of Interzen Consulting S.r.l ZenShare Suite v17.0 allows attackers to execute arbitrary Javascript in the context of the user's browser via a crafted URL injected into the codice_azienda parameter.
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RapidWhat Do We Measure ?
Incident
Finding
Grade
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 Security
Identify 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 Intelligence
Leverage real-time insights on active threats, malware campaigns, and emerging vulnerabilities to proactively defend against evolving cyberattacks.
Rankiteo is a unified scoring and risk platform that analyzes billions of signals weekly to help organizations gain faster, more actionable insights into emerging threats. Empowering teams to outpace adversaries and reduce exposure.
