WhatsApp is widely used for personal and professional communication, which makes privacy and data security extremely ...

Handing your phone to someone else, even for a moment, is one of the riskiest things most people do with their devices without thinking. Buried in both iOS and Android is a simple lock that can freeze ...

Forbes contributors publish independent expert analyses and insights. Zak Doffman writes about security, surveillance and privacy. Updated on Jan. 13 with further updates on locking apps on Android.