Comparison Overview

Aon

VS

Merrill Lynch

Aon

122 Leadenhall Street, London, undefined, EC3V 4AN, GB
Last Update: 2025-12-11
Between 750 and 799

We exist to shape decisions for the better — to protect and enrich the lives of people around the world. Through actionable analytic insight, globally integrated Risk Capital and Human Capital expertise, and locally relevant solutions, our colleagues provide clients in over 120 countries with the clarity and confidence to make better risk and people decisions that help protect and grow their businesses.

NAICS: 52
NAICS Definition: Finance and Insurance
Employees: 75,543
Subsidiaries: 11
12-month incidents
0
Known data breaches
2
Attack type number
3

Merrill Lynch

2 World Financial Center, New York, NY, 10281, US
Last Update: 2025-12-09
Between 800 and 849

Founded in 1914, Merrill is one of the largest wealth management businesses in the world. Merrill financial advisors combine financial knowledge and experience with a deep understanding of their clients’ needs to help their clients pursue the lives they want. With a deep commitment to placing their clients' interests first, Merrill financial advisors draw upon the investment insights of Merrill and the banking insights of Bank of America to unlock opportunities tailored to their clients’ needs in many areas of their financial lives. The strategies our financial advisors offer go beyond investment management to include college savings strategies, retirement planning, eldercare, philanthropy, estate planning services, small business services, and access to cash management & banking strategies. Any opinions, views, statements, estimates or projections ("posts") posted on this web page are solely those of the author(s). Merrill Lynch Global Wealth Management is part of Bank of America Corporation's Global Wealth & Investment Management business. Additional Terms, Conditions & Disclaimers found here: https://www.ml.com/social-media/merrill-lynch-on-twitter.html Disclaimer The site is maintained by a third party that has no affiliation with Merrill Lynch, Pierce, Fenner & Smith Incorporated ("MLPF&S" or "Merrill"). The recommendations posted to this page by or about Merrill employees, are not endorsed by, and may not represent the views. This material is not intended to constitute a recommendation, offer or solicitation for the purchase or sale of any security financial instrument. or strategy. Always consult with your independent attorney, tax advisor, investment managers, and insurance agent for final recommendations and before changing or implementing any financial, tax, or estate planning strategy. Bank of America Linkedin Community Guidelines: http://about.bankofamerica.com/en-us/social-media/linkedin-community­guidelines.html

NAICS: 52
NAICS Definition: Finance and Insurance
Employees: 34,776
Subsidiaries: 1
12-month incidents
0
Known data breaches
3
Attack type number
2

Compliance Badges Comparison

Security & Compliance Standards Overview

https://images.rankiteo.com/companyimages/aon.jpeg
Aon
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/merrilllynch.jpeg
Merrill Lynch
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
Aon
100%
Compliance Rate
0/4 Standards Verified
Merrill Lynch
0%
Compliance Rate
0/4 Standards Verified

Benchmark & Cyber Underwriting Signals

Incidents vs Financial Services Industry Average (This Year)

No incidents recorded for Aon in 2025.

Incidents vs Financial Services Industry Average (This Year)

No incidents recorded for Merrill Lynch in 2025.

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

Aon cyber incidents detection timeline including parent company and subsidiaries

Incident History — Merrill Lynch (X = Date, Y = Severity)

Merrill Lynch cyber incidents detection timeline including parent company and subsidiaries

Notable Incidents

Last 3 Security & Risk Events by Company

https://images.rankiteo.com/companyimages/aon.jpeg
Aon
Incidents

Date Detected: 07/2023
Type:Data Leak
Attack Vector: SQL Injection
Blog: Blog

Date Detected: 02/2022
Type:Cyber Attack
Blog: Blog

Date Detected: 12/2020
Type:Breach
Attack Vector: Unauthorized Access
Blog: Blog
https://images.rankiteo.com/companyimages/merrilllynch.jpeg
Merrill Lynch
Incidents

Date Detected: 2/2025
Type:Breach
Attack Vector: Inadvertent Disclosure
Blog: Blog

Date Detected: 10/2024
Type:Breach
Blog: Blog

Date Detected: 4/2024
Type:Breach
Attack Vector: Human Error (Email Misconfiguration)
Blog: Blog

FAQ

Merrill Lynch company demonstrates a stronger AI Cybersecurity Score compared to Aon company, reflecting its advanced cybersecurity posture governance and monitoring frameworks.

Aon and Merrill Lynch have experienced a similar number of publicly disclosed cyber incidents.

In the current year, Merrill Lynch company has reported more cyber incidents than Aon company.

Neither Merrill Lynch company nor Aon company has reported experiencing a ransomware attack publicly.

Both Merrill Lynch company and Aon company have disclosed experiencing at least one data breach.

Aon company has reported targeted cyberattacks, while Merrill Lynch company has not reported such incidents publicly.

Neither Aon company nor Merrill Lynch company has reported experiencing or disclosing vulnerabilities publicly.

Neither Aon nor Merrill Lynch holds any compliance certifications.

Neither company holds any compliance certifications.

Aon company has more subsidiaries worldwide compared to Merrill Lynch company.

Aon company employs more people globally than Merrill Lynch company, reflecting its scale as a Financial Services.

Neither Aon nor Merrill Lynch holds SOC 2 Type 1 certification.

Neither Aon nor Merrill Lynch holds SOC 2 Type 2 certification.

Neither Aon nor Merrill Lynch holds ISO 27001 certification.

Neither Aon nor Merrill Lynch holds PCI DSS certification.

Neither Aon nor Merrill Lynch holds HIPAA certification.

Neither Aon nor Merrill Lynch holds GDPR certification.

Latest Global CVEs (Not Company-Specific)

Description

LibreChat is a ChatGPT clone with additional features. In versions 0.8.0 and below, there is no handler for JSON parsing errors; SyntaxError from express.json() includes user input in the error message, which gets reflected in responses. User input (including HTML/JavaScript) can be exposed in error responses, creating an XSS risk if Content-Type isn't strictly enforced. This issue does not have a fix at the time of publication.

Risk Information
cvss4
Base: 5.3
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/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

LibreChat is a ChatGPT clone with additional features. In versions 0.8.0 and below, when creating prompts, JSON requests are sent to define and modify the prompts via PATCH endpoint for prompt groups (/api/prompts/groups/:groupId). However, the request bodies are not sufficiently validated for proper input, enabling users to modify prompts in a way that was not intended as part of the front end system. The patchPromptGroup function passes req.body directly to updatePromptGroup() without filtering sensitive fields. This issue is fixed in version 0.8.1.

Risk Information
cvss4
Base: 5.3
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/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

LibreChat is a ChatGPT clone with additional features. In versions 0.8.0 and below, when a user posts a question, the iconURL parameter of the POST request can be modified by an attacker. The malicious code is then stored in the chat which can then be shared to other users. When sharing chats with a potentially malicious “tracker”, resources loaded can lead to loss of privacy for users who view the chat link that is sent to them. This issue is fixed in version 0.8.1.

Risk Information
cvss4
Base: 8.6
Severity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/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

MaxKB is an open-source AI assistant for enterprise. Versions 2.3.1 and below have improper file permissions which allow attackers to overwrite the built-in dynamic linker and other critical files, potentially resulting in privilege escalation. This issue is fixed in version 2.4.0.

Risk Information
cvss3
Base: 8.8
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description

MaxKB is an open-source AI assistant for enterprise. In versions 2.3.1 and below, the tool module allows an attacker to escape the sandbox environment and escalate privileges under certain concurrent conditions. This issue is fixed in version 2.4.0.

Risk Information
cvss3
Base: 8.8
Severity: LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H