X Appoints Michael O'Herlihy as Head of Safety

November 3 — According to a post from X's official safety team account (@Safety), X has appointed Michael O'Herlihy as its new Head of Safety. O'Herlihy will be responsible for the safety of users and brands across the platform and its AI systems, while also protecting free expression and improving transparency in safety work. He will attend the Brand & AI Safety Summit in New York on November 10, where he will explain the role of open systems and user-visible controls in platform safety and advertiser confidence.