wiredmikey writes In a move to bolster the security of its massive global server network, Facebook announced on Thursday it was acquiring PrivateCore, a Palo Alto, California-based cybersecurity startup. PrivateCore describes that its vCage software transparently secures data in use with full memory encryption for any application, any data, anywhere on standard x86 servers. "I'm really excited that Facebook has entered into an agreement to acquire PrivateCore," Facebook security chief Joe Sullivan wrote in a post to his own Facebook page. "I believe that PrivateCore's technology and expertise will help support Facebook's mission to help make the world more open and connected, in a secure and trusted way," Sullivan said. "Over time, we plan to deploy PrivateCore's technology directly into the Facebook server stack."