National Security Agency leaker Edward Snowden has finally left the transit area of the Moscow airport, after Russia granted him temporary asylum, his lawyer told The Wall Street Journal.

Researchers showed a Black Hat audience how femotcell technology, used by phone companies to boost cell phone coverage, can be hacked to intercept cell phone calls, text messages and other data.

Facebook turned on a key security feature by default on Wednesday that scrambles data sent by users to the company’s servers, following similar moves in recent years by Web services such as Google and Twitter.