Ex-Twitter security head claims the company fired him to flout regulations

Illustration by Kristen Radtke / The Verge; Getty Images

Alan Rosa, former head of security for Twitter, filed a lawsuit against X, Elon Musk, and company adviser Steve Davis, alleging that he was wrongly fired for protesting Musk-led cost-cutting measures. Lawyers for Rosa wrote in the complaint that the cuts hampered Twitter’s ability to comply with the regulatory demands of the Federal Trade Commission and the European Commission.

The lawsuit alleged that Musk hired Steve Davis as an adviser and gave him broad authority...