Software
WhatsApp, Signal group chats not as secure as users might believe
Reported by helpnetsecurity.com
Researchers have discovered flaws in the way WhatsApp, Signal, and Threema messaging apps handle secure (encrypted) group communication, which could result in unauthorized users getting added to closed groups and monitoring future conversations within them.Paul Rösler, Christian Mainka, and Jörg Schwenk analyzed the three widely used protocols and their implementations.