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Comparison Overview

BlockBlock
VS
Marsh McLennanMarsh McLennan
Block

Block

Oakland, California, US

Last Update: 07/09/2026

View Profile
Between 700 and 749
https://block.xyz/
749/1000Moderate

Block is one company built from many blocks, all united by the same purpose of economic empowerment. The blocks that form our foundational teams — People, Finance, Counsel, Hardware, Information Security, Platform Infrastructure Engineering, and more — provide support a...

NAICS:52
NAICS Definition:Finance and Insurance
Employees:13,182
Subsidiaries:0
12-month incidents
0
Known data breaches
1
Attack type number
1
Marsh McLennan

Marsh McLennan

1166 Avenue of the Americas, New York, NY, US, 10036

Last Update: 11/09/2026

View Profile
Between 800 and 849
http://www.corporate.marsh.com
809/1000Good

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 ...

NAICS:52
NAICS Definition:Finance and Insurance
Employees:45,730
Subsidiaries:0
12-month incidents
0
Known data breaches
1
Attack type number
2

Compliance Ranges Comparison

Based On Specific Ai Models Category
Block

Block

-
ISO 27001Not verified
ISO 27001
-
SOC2 Type 1Not verified
SOC2 Type 1
-
SOC2 Type 2Not verified
SOC2 Type 2
-
GDPRNot verified
GDPR
-
PCI DSSNot verified
PCI DSS
-
HIPAANot verified
HIPAA
Marsh McLennan

Marsh McLennan

-
ISO 27001Not verified
ISO 27001
-
SOC2 Type 1Not verified
SOC2 Type 1
-
SOC2 Type 2Not verified
SOC2 Type 2
-
GDPRNot verified
GDPR
-
PCI DSSNot verified
PCI DSS
-
HIPAANot verified
HIPAA

Benchmark & Cyber Underwriting Signals

Incidents vs Financial Services Industry Avg (This Year)

No incidents recorded for Block in 2026.

Incidents

Incidents vs Financial Services Industry Avg (This Year)

No incidents recorded for Marsh McLennan in 2026.

Incidents

Incident History - Block (X = Date, Y = Severity)

Block cyber incidents detection timeline including parent company and subsidiaries.

R - Ransomware
C - Cyber Attack
D - Data Breach
V - Vulnerability

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

Marsh McLennan cyber incidents detection timeline including parent company and subsidiaries.

R - Ransomware
C - Cyber Attack
D - Data Breach
V - Vulnerability

Notable Incidents

Last Cyber / HR Incidents / Global...
Block

Block

Incidents
🔒 Incident : Breach
JOI1902219091025
Marsh McLennan

Marsh McLennan

Incidents
🔒 Incident : Data Leak
MAR18242223
🔒 Incident : Breach
MAR307072525

FAQ

Between Block company and Marsh McLennan company, which one has the best AI Cybersecurity Score ?
Between Block company and Marsh McLennan company, which one has experienced more cyber incidents in the past ?
Between Block company and Marsh McLennan company, which one has experienced more cyber incidents this year ?
Between Block company and Marsh McLennan company, which one has experienced at least one ransomware attack ?
Between Block company and Marsh McLennan company, which one has experienced at least one data breach ?
Between Block company and Marsh McLennan company, which one has experienced at least one targeted cyberattack ?
Between Block company and Marsh McLennan company, which one has experienced at least one vulnerability ?
Between Block company and Marsh McLennan company, which one holds the most compliance certifications ?
Between Block company and Marsh McLennan company, which one holds the fewest compliance certifications ?
Between Block company and Marsh McLennan company, which one has the most subsidiaries ?
Between Block company and Marsh McLennan company, which one has the largest number of employees ?
Between Block and Marsh McLennan, which company holds both SOC 2 Type 1 certifications ?
Between Block and Marsh McLennan, which company holds both SOC 2 Type 2 certifications ?
Which company is ISO 27001 certified - Block or Marsh McLennan ?
Which company is PCI DSS compliant - Block or Marsh McLennan ?
Between Block and Marsh McLennan, which company complies with HIPAA regulations for healthcare data ?
Between Block and Marsh McLennan, which company complies with GDPR requirements ?

Latest Global CVEs

CVE-2026-100739
SUMMARY

A vulnerability was detected in mathurvishal CloudClassroom-PHP-Project up to 5dadec098bfbbf3300d60c3494db3fb95b66e7be. This impacts an unknown function of the file viewresult.php. Performing a manipulation of the argument seno results in sql injection. Remote exploitation of the attack is possible. The exploit is now public and may be used. This product follows a rolling release approach for continuous delivery, so version details for affected or updated releases are not provided. The vendor was contacted early about this disclosure but did not respond in any way.

PUBLISHED
Date2026-09-26
UPDATED
Date2026-09-26
RISK INFORMATION (Score: 7.3)
CVSS2
Base Score: 7.5
Complexity: LOW
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Base Score: 7.3
Complexity: LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CVSS4
Base Score: 5.5
Complexity: LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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
IMPACT SCORE
3.4
EXPLOITABILITY
3.9
REFERENCES
CVE-2026-94408
SUMMARY

Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead denial of service via Excessive Allocation (CAPEC-130)

PUBLISHED
Date2026-09-26
UPDATED
Date2026-09-26
RISK INFORMATION (Score: 4.9)
CVSS3
Base Score: 4.9
Complexity: LOW
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
IMPACT SCORE
3.6
EXPLOITABILITY
1.2
REFERENCES
CVE-2026-94400
SUMMARY

Uncontrolled Resource Consumption (CWE-400) in Kibana can lead denial of service via Excessive Allocation (CAPEC-130)

PUBLISHED
Date2026-09-26
UPDATED
Date2026-09-26
RISK INFORMATION (Score: 6.5)
CVSS3
Base Score: 6.5
Complexity: LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
IMPACT SCORE
3.6
EXPLOITABILITY
2.8
REFERENCES
CVE-2026-94399
SUMMARY

Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead denial of service via Excessive Allocation (CAPEC-130)

PUBLISHED
Date2026-09-26
UPDATED
Date2026-09-26
RISK INFORMATION (Score: 6.5)
CVSS3
Base Score: 6.5
Complexity: LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
IMPACT SCORE
3.6
EXPLOITABILITY
2.8
REFERENCES
CVE-2026-94398
SUMMARY

Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead denial of service via Excessive Allocation (CAPEC-130)

PUBLISHED
Date2026-09-26
UPDATED
Date2026-09-26
RISK INFORMATION (Score: 6.5)
CVSS3
Base Score: 6.5
Complexity: LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
IMPACT SCORE
3.6
EXPLOITABILITY
2.8
REFERENCES