WhatsApp is rolling out Scam Alert in limited beta, using on-device machine learning to flag suspicious messages from non-contacts while keeping all classification and reporting local to the device. Signal has also added automatic key verification to strengthen end-to-end encrypted chats by using key transparency and independent audits to detect unauthorized key swaps. #WhatsApp #ScamAlert #Signal #AutomaticKeyVerification #Cloudflare #TrailofBits
Keypoints
- WhatsApp’s Scam Alert flags suspicious messages from non-contacts on-device.
- No message content is sent to WhatsApp or Meta for automatic reporting.
- Users can block, report, ignore, or trust flagged conversations.
- WhatsApp uses a transparency ledger and signed hashes to verify model releases.
- Signal’s automatic key verification helps detect unauthorized public key swaps.
Read More: https://www.securityweek.com/whatsapp-unveils-new-scam-alert-feature/