On 15 December 2014, current and former Sony employees filed a class action against Sony alleging that Sony failed to protect their personal information. The damage bill from the 2011 worldwide data breach incident of Sony PlayStation, which resulted in the disclosure of 77 million user accounts, names and credit card details, is still fresh in the minds of Sony executives. Sony estimated the costs to remedy the 2011 worldwide data breach incident was at least $171 million.