2011 — Anthem: Letters soliciting dental and vision coverage were…
Data compromised
Personal information
Technical writeup
Letters soliciting dental and vision coverage were mailed to current Anthem customers. A priority code composed of the customer's Social Security number and two extra digits was printed on the outside of each envelope. One customer noticed the error and contacted the media. Anthem admits that an error occurred, but did not reveal the cause. Anthem is working to prevent this type of breach from happening again and was in the process of notifying customers of the error as of May 12. UPDATE (10/
Root cause
Unintended disclosure