WhatsApp adds passwordless chat backups on iOS and Android
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WhatsApp is rolling out passkey-encrypted backups for iOS and Android, allowing users to encrypt chat backups using biometrics or screen lock codes instead of passwords or long encryption keys. The announcement explains how passkeys generate device-held cryptographic key pairs, reiterates WhatsApp's prior E2EE backup and contact-database encryption work, and notes a gradual worldwide rollout with instructions to enable the feature via Chats > Chat backup > End-to-end encrypted backup.
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