Alex Stamos is leaving Yahoo to become the company’s new CSO. Stamos joined Yahoo as CISO in March 2014 and quickly set about upgrading the security of that company s many services. He says he is joining Facebook because he believes the company is in the best position to address some of the large security challenges facing users and companies right now. Before he joined Yahoo, Stamos spent more than a decade as a security consultant and executive at influential firms such as @stake and iSEC Partners.
Source: https://threatpost.com/facebook-hires-ex-yahoo-ciso-alex-stamos/113465/

