YP Holdings submitted a California SB-24 breach notification regarding a cyber attack on its healthcare provider, Anthem, Inc. The incident, discovered on January 5, 2015, involved unauthorized access to Anthem's IT systems starting in December 2014. Affected data included names, Social Security numbers, dates of birth, addresses, and employment information for YP team members and their dependents. Anthem engaged the FBI and Mandiant for investigation, closed vulnerabilities, and provided identity repair and credit monitoring services to affected individuals.