WHAT IT MEANS FOR PRIVACY
Encrypted messaging is in many ways a big plus for privacy. But the way Facebook collects information about you on its main service site isn’t changing, said Jen King, director of consumer privacy at Stanford Law School’s Center for Internet and Society.
“This is limited to a very specific part of the platform and it doesn’t really address all the ways Facebook is still collecting data about you,” she said. So users should still be alert about privacy settings and careful about what they choose to share on Facebook.
Facebook is likely to collect data about your messaging — so-called metadata that, according to security experts, will let it know who you communicate with, when and how often you text them, where you are when you do it and for how long. That can tell Facebook a lot about you even if it can’t read the contents of your messages.