The vendor helps CalPERS identify member deaths and make sure that correct payments go to retirees and their beneficiaries.. The personal information of about 769,000 retired CalPERS members was exposed in a third-party data breach that was reported earlier this month. CalSTRS also said it was impacted by the breach and KCRA 3 is trying to learn how many of its members were impacted. CalPERS, the California Public Employees' Retirement System, is the nation's largest public pension fund. It serves more than 2 million members in its retirement system and more than 1.5 million in its health program. CalSTRS, the...