Anthem Blue Cross suffered a major data breach exposing the personal information of 80 million customers. Hackers gained unauthorized access to Anthem's system and obtained names, birthdays, social security numbers, addresses, email addresses, and employment information. While credit card and medical records were not compromised, the breach puts customers at risk of identity theft. Experts advise customers to freeze their credit, enroll in credit monitoring through Anthem, monitor accounts for fraud, and be wary of potential phishing scams related to the breach. The breach has resulted in lawsuits against Anthem and investigations by state attorneys general and insurance commissioners.