Twitter's Chief Information Security Officer Departs

Twitter Inc. Chief Information Security Officer Michael Coates is leaving the company, according to people familiar with the matter.

Coates oversaw the protection of data on the platform. His departure comes at a critical time for Twitter, which has been under intense scrutiny from lawmakers for failing to prevent foreign meddlers, bots and fake accounts from running rampant. Coates’ exit comes shortly after news reports that Facebook Inc.’s chief security officer, Alex Stamos, is planning to leave the company.