During the week of Thanksgiving, Sony Pictures Entertainment was targeted by hackers that disabled its internal email system and leaked 25GB of sensitive company information including financial records (expense reports, accounting reports, account routing information, promotion information, and payroll records), more than 30,000 sensitive HR documents (rules and regulations, salaries of top executives, addresses, social security numbers, offer letters, criminal background information, and employee reviews), a number of motion pictures that have yet to be released, and healthcare information; the latter being a major HIPAA violation. These files were harvested for over a year and were traded on various torrent networks after the initial breach. The cyberattack is currently being investigated by the FBI.

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http://krebsonsecurity.com/2014/12/sony-breach-may-have-exposed-employee-healthcare-salary-data/