https://www.theverge.com/2018/8/1/17640852/facebook-cso-alex-stamos-departing-no-replacement

Facebook’s chief security officer, Alex Stamos, said today that he’ll be leaving the company later this month. The announcement comes just a day after Facebook — and to a large extent, Stamos — revealed that Facebook had discovered malicious actors who continue to use the platform to manipulate political discussions and organizing in the United States.

Stamos won’t be replaced after he leaves, meaning no one will hold the title of “chief security officer” at Facebook. All eyes are trained on the company to see how it will deal with major security concerns, including the use of fake accounts to manipulate politics and the Cambridge Analytica data scandal.