Anthem health insurer data breach
Add to my breach checkMade public · 78,800,000 people
What leaked8
Hard to replace
- Health insurance or Medicare number
- Mobile number
- Home or delivery address
- Email address
- Employer
Permanent
- Social Security number
- Date of birth
- Full name
- Health insurance or Medicare numberhealth care identification numbers
- Mobile numberphone number · type not stated
- Employeremployment information
To-dos12 · about 3 h in all
- Freeze your credit at Equifax, Experian and TransUnionStops: credit in your name (opens in a new tab)
- Get an IRS Identity Protection PINStops: tax refund fraud (opens in a new tab)
- Place a fraud alert on your credit reportsLimits harm from: credit in your name (opens in a new tab)
- Check your credit reports every week, freeHelps you notice: credit in your name (opens in a new tab)
- Know the scam pattern: calls and texts that cite these leaked detailsLimits harm from: scam calls, phishing messages
7 more
- Turn on your carrier's port-out lockLimits harm from: SIM swap
- Turn on your carrier's SIM-change lockLimits harm from: SIM swap
- Turn on instant transaction alertsHelps you notice: scam calls
- Freeze your NCTUE phone and utility fileLimits harm from: phone or utility account (opens in a new tab)
- Check your health insurance statements for care you did not getHelps you notice: medical care in your name (opens in a new tab)
- Remove your address and phone from public profiles and tighten SNS privacyLimits harm from: visits or contact at home
- Use an authenticator app or passkey instead of SMS codesLimits harm from: SMS code theft
What happened next10 events
- Anthem agreed to data security and good governance provisions and to stop misrepresenting how it protects personal information
- Multistate settlement: 39.5 million USD in penalties and fees
- Indictment unsealed in Indianapolis charging a Chinese national and an unnamed co-conspirator with four counts over the Anthem intrusion and three other companies
- 16 million USD HIPAA settlement with corrective action, then the largest HIPAA settlement
- Offered credit monitoring with identity theft insurance to claimants and fraud resolution services to all, or up to 50 USD instead for people who already had monitoring
5 more
- Final approval of a 115 million USD settlement for a class of about 79.15 million people, the largest data breach class settlement in the U.S. at the time per the parties
- Class actions consolidated as an MDL in the Northern District of California
- Disclosed that hackers broke into its servers and stole Social Security numbers and other personal data; the FBI was contacted
- A systems administrator noticed a database query running under his credentials that he had not started
- Intrusion began
- Company
- Anthem
- When it happened
- Company detected it
- Made public
- Notice
- Leak confirmed
- Affected
- 78,800,000 people · New York attorney general, multistate settlement; HHS put it at almost 79 million
Sources
- New York State Attorney General regulator (opens in a new tab)checked October 22, 2026
- U.S. Department of Health and Human Services, Office for Civil Rights regulator (opens in a new tab)checked October 22, 2026
- U.S. District Court for the Northern District of California court (opens in a new tab)checked October 22, 2026
- MedCity News press (opens in a new tab)checked October 22, 2026
- KrebsOnSecurity press (opens in a new tab)checked October 22, 2026