Signal encrypted messaging app added disappearing messages to its privacy features. A timer can be set that will clear messages any time between five seconds to one week once a message is opened. The feature is a security enhancement that delivers security in case a device is lost or stolen. The release also included support for the Signal Protocol s numeric fingerprint called safety numbers. The American Civil Liberties Union last week shared transcripts and court documents that included a gag order that was lifted recently related to a case related to the case.
Source: https://threatpost.com/disappearing-messages-added-to-signal-app/121237/