Epsilon A.I CyberSecurity Scoring
Epsilon
Company Information
Website:https://www.epsilon.com
Employees number:10,919
Number of followers:527,308
NAICS:541613
Industry Type:Advertising Services
Homepage:epsilon.com
Epsilon Risk Score (AI oriented)
Between 750 and 799
EpsilonAdvertising Services
Updated:
30/03/2026
30/03/2026
783/1000
Fair
Baa
Epsilon Global Score (TPRM)
xxxx
EpsilonAdvertising Services
Score locked

EpsilonFair
Current Score
783Baa (FAIR)
01000
2 incidents
0 avg impact
Incident timeline with MITRE ATT&CK tactics, techniques, and mitigations.
JUNE 2026
783
MAY 2026
783
APRIL 2026
783
MARCH 2026
783
FEBRUARY 2026
783
JANUARY 2026
783
DECEMBER 2025
782
NOVEMBER 2025
782
OCTOBER 2025
782
SEPTEMBER 2025
782
AUGUST 2025
782
JULY 2025
782
JUNE 2011
735
Breach
16 Jun 2011 • Epsilon
Epsilon
Epsilon Data Breach
653
CRITICAL-82
EPS153827123
Epsilon—the world’s largest permission-based email marketing company suffered a massive data breach incident in April of 2011 where the names and addresses of 60 million users were stolen.
An unauthorized entry got into Epsilon’s email system and breached the mails and names of around 2% of their clients.
Companies like Walgreens, BestBuy, CitiGroup, JPMorgan, Capital One and others were all affected indirectly.
INCIDENT DETAILS -
TYPE
IMPACT
DATA BREACH
REFERENCES
APRIL 2011
783
Breach
01 Apr 2011 • Epsilon
Epsilon Data Management, LLC
Epsilon Data Management LLC Data Breach
732
LOW-51
EPS458072625
The Iowa Attorney General's Office reported on April 5, 2011, a data breach involving Epsilon Data Management LLC, which exposed a subset of customer email addresses and names. The breach occurred due to unauthorized access to Epsilon's email system, with a potential impact on Iowans and a warning regarding increased phishing threats.
INCIDENT DETAILS -
TYPE
IMPACT
DATA BREACH
REFERENCES
Frequently Asked Questions
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