FBI document shows what data can be obtained from encrypted messaging apps
A recently discovered FBI training document shows that US law enforcement can gain limited access to the content of encrypted messages from secure messaging services like iMessage, Line, and WhatsApp, but not to messages sent via Signal, Telegram, Threema, Viber, WeChat, or Wickr.
While the document confirms that the FBI can’t gain access to encrypted messages sent through some services, the other type of information they can glean from providers might still help authorities in other aspects of their investigations.