Google has introduced two safety features for its Messages app: the Android Key Verifier and a spam protection feature. The Android Key Verifier is available for users on Android 10 and above, using QR codes to verify end-to-end encrypted message exchanges. Users can verify keys by tapping on the contact's name and selecting “Verify keys.” A confirmation message appears upon successful verification, and users are alerted if a contact's key changes due to reasons like acquiring a new device or SIM card, key expiration, or encryption protocol upgrades. Potential malicious reasons for key changes include man-in-the-middle attacks and SIM swapping. Users are advised to keep the Android System Key Verifier app updated. The spam protection feature prevents access to harmful links in texts unless marked as “not spam,” and it is now available worldwide.