More top executives have left Twitter, including head of safety Yoel Roth, chief information security officer Lea Kissner, chief privacy officer Damien Kieran, and chief compliance officer Marianne Fogarty.
The exits have prompted concern at the US Federal Trade Commission (FTC) over whether the company would be able to abide by its regulations.
“We are tracking recent developments at Twitter with deep concern,” said Douglas Farrar, the FTC’s director of public affairs. “No chief executive or company is above the law, and companies must follow our consent decrees.”
Earlier this year, the FTC fined Twitter $150m for deceptively using account security data for targeted advertising.
