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Brown Brothers Harriman

Brown Brothers Harriman Vendor Cyber Rating & Cyber Score

bbh.com
in
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ISO 27001
SOC 2 Type 1
SOC 2 Type 2
PCI DSS
HIPAA
GDPR

Brown Brothers Harriman (BBH) is a global financial services firm known for premium service and specialist expertise. Founded in 1818, we have a 200-year track record helping clients innovate and navigate complex financial markets. As a private partnership, we are uniquely built to put clients first and create success that lasts. Our 6,000 employees across BBH’s 18 offices serve clients through two focused business lines: Investor Services – offering innovative operating model solutions and asset servicing in 90 markets; and Capital Partners – offering multi-family office services, investment management, private equity, corporate advisory, and banking. Please visit bbh.com to learn more and meet our team. -- This material is provided


BBH A.I CyberSecurity Scoring

Incident Details
BBH
Company Information
Website:http://www.bbh.com
Employees number:6,708
Number of followers:92,867
NAICS:52
Industry Type:Financial Services
Homepage:bbh.com
Cyber Premium EstimationGet Supply Chain
BBH Risk Score (AI oriented)
Between 700 and 749
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BBHFinancial Services
Updated:
30/03/2026
712/1000
Moderate
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Powered by our proprietary A.I cyber incident model
✖ Insurance prefers TPRM score to calculate premium
BBH Global Score (TPRM)
xxxx
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BBHFinancial Services
•••
Score locked
Instant access to detailed risk factors
Vulnerabilities
Benchmark vs. industry & size peers
Findings

BBH
BBHModerate
Current Score
712Ba (MODERATE)
01000
2 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
JULY 2026
716Before Incident
JUNE 2026
715Before Incident
MAY 2026
714Before Incident
APRIL 2026
713Before Incident
MARCH 2026
712Before Incident
FEBRUARY 2026
711Before Incident
JANUARY 2026
710Before Incident
DECEMBER 2025
709Before Incident
NOVEMBER 2025
707Before Incident
OCTOBER 2025
706Before Incident
SEPTEMBER 2025
705Before Incident
AUGUST 2025
704Before Incident
MAY 2022
701Before Incident
Breach
01 May 2022 • BBH
Brown Brothers Harriman

Brown Brothers Harriman & Co. Data Breach

625After Incident
CRITICAL-76
BRO0322522
Brown Brothers Harriman & Co. suffered a data breach incident after one of its third-party vendors, R.R. Donnelley & Sons Company was targeted in a cyber attack. The incident compromised the names, mailing addresses, Social Security numbers, and account numbers of about 2800 BBH customers. BBH notified all its impacted customers of the breach.
INCIDENT DETAILS -
TYPE
Data Breach
IMPACT
NamesMailing addressesSocial Security numbersAccount numbers
DATA BREACH
NamesMailing addressesSocial Security numbersAccount numbersNamesMailing addressesSocial Security numbers
REFERENCES
Blog URLSource URL
DECEMBER 2021
771Before Incident
Breach
23 Dec 2021 • BBH
Brown Brothers Harriman & Co.

Data Breach at Brown Brothers Harriman & Co.

695After Incident
CRITICAL-76
BRO734072925
The Maine Office of the Attorney General reported that Brown Brothers Harriman & Co. (BBH) experienced a data breach due to a systems intrusion at its third-party vendor, R.R. Donnelley & Sons Company, on December 23, 2021. An unauthorized party accessed certain BBH files, potentially exposing the personal information of 2,800 individuals, including Social Security numbers. BBH is offering impacted individuals three years of identity restoration and credit monitoring services provided by Experian.
INCIDENT DETAILS -
TYPE
Data Breach
IMPACT
Personal InformationSocial Security NumbersIdentity Theft Risk: High
DATA BREACH
Personal InformationSocial Security NumbersSensitivity Of Data: HighPersonally Identifiable Information: Yes
REFERENCES
Blog URLSource URL

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Brown Brothers Harriman Cyber Scoring History | Rankiteo