"There's no harm in Cryptocat using this already-given metadata to allow these users to set up encrypted chats," Kobeissi wrote. ![]() Users presumably know they're divulging that information already to Facebook by using their service. ![]() The fact that Facebook knows two people are chatting, a type of information known as metadata, should not be a deal breaker, Kobeissi wrote. But the messages themselves will only say. If two people are using Cryptocat, Facebook will know an exchange occurred between the two users and the time of their chat. The social networking service would have access to the clear text of those conversations, which potentially could be surrendered to law enforcement under a court order. Messages exchanged using Facebook are protected by SSL (Secure Sockets Layer) encryption, but that only encrypts data between an end user and Facebook. ![]() National Security Agency contractor Edward Snowden revealing sophisticated online surveillance techniques used by the spy agency.įacebook has said it could enable end-to-end encryption between users exchanging data, but said such technology is complicated and makes it harder for people to communicate. The security of emails and messages was brought sharply into focus by secret documents leaked by former U.S. The move could augment Cryptocat's user base since new users won't have the chore of building a new contacts list, although they would need to download Cryptocat's browser extension or iPhone application to benefit from encryption.
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