Tesla CEO Elon Musk acknowledged Friday that the company was ‘embarrassingly late’ rolling out a security layer known as two-factor authentication for its mobile app. “Sorry, this is embarrassingly late. Two factor authentication via sms or authenticator app is going through final validation right now,” Musk wrote Friday in response to a question from a Twitter follower. Musk said in April that the additional security layer was “coming soon.” He first mentioned that the company would add two-factor authentication back in May 2019.