On Dec. 13, 2019, Facebook informed its employees that hard drives containing information about 29,000 of its workers’ payroll were stolen from a car.
The hard drives were unencrypted, and contained information on US employees of Facebook that worked in 2018, exposing their bank account numbers, employee names, the last four digits of their Social Security Numbers, their salaries, bonuses and equity details.
The theft took place on November 17, 2019, and Facebook discovered it on November 20.
The hard drives were left in the car by a member of Facebook’s payroll department. They were not supposed to leave the office.
Read more about it here.