Alex Stamos, the co-organizer/host of TrustyCon and CTO of security company Artemis, has been named as the chief information security officer (CISO) of Yahoo!, according to Amir Efrati in a tweet from about a week and a half ago. Yahoo!’s previous CISO, Justin Somaini, left Yahoo! over a year ago. Stamos is going to be starting at the company on March 10th and will report directly to Yahoo! CEO Marissa Mayer.