WhatsApp to Add Support for Passkey-Encrypted Backups

WhatsApp this week announced that it is adding passkey-encrypted chat backups, allowing users to protect their stored messages using Touch ID or Face ID instead of a 64-digit key.

Whatsapp Feature
The feature extends the app's 2021 end-to-end encrypted backup system, which previously required users to create and save a lengthy key to restore chats. With passkeys, authentication uses each device's built-in authentication hardware like ‌Touch ID‌ or ‌Face ID‌, meaning the private cryptographic key never leaves the phone. This makes backups both more secure and much easier to restore.

The rollout is set to be global and gradual over the coming weeks. Users can enable it via SettingsChatsChat backupEnd-to-end encrypted backup once available. iCloud and Google Drive remain the storage destinations for iOS and Android, respectively. The move continues Meta's broader adoption of passkeys, which WhatsApp first supported for account logins in 2023.

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Top Rated Comments

neptuna Avatar
1 day ago at 05:21 am

Its safer to switch to iMessage and encourage family and friends to use Apple devices.
Maybe switch to Signal instead. I love iMessage, but competition is healthy for consumers and everyone on Apple devices may end up biting us in the butt later.
Score: 5 Votes (Like | Disagree)
EightyEight Avatar
1 day ago at 05:13 am
Safer, yes. But convincing family and friends to switch is very difficult.
Score: 4 Votes (Like | Disagree)
klasma Avatar
23 hours ago at 06:51 am

Im still confused about passkey

I create a passkey with my face on iPhone 13 Pro.

Can I then login with my face , on a 17 ?
Yes. The passkey isn’t actually connected to your face. But it’s stored in the iCloud keychain, and your face unlocks access to it on each device connected to your iCloud account and where you have set up Face ID, similar to how it unlocks access to Apple Pay and similar.
Score: 3 Votes (Like | Disagree)
Apple-achian Avatar
1 day ago at 05:10 am
Its safer to switch to iMessage and encourage family and friends to use Apple devices.
Score: 3 Votes (Like | Disagree)
blizzerand Avatar
1 day ago at 05:24 am

Its safer to switch to iMessage and encourage family and friends to use Apple devices.
Where i am at, even if the family is on iPhone, whatsapp is the means of communication. It just works.
Score: 3 Votes (Like | Disagree)
klasma Avatar
1 day ago at 05:49 am

WhatsApp this week announced ('https://blog.whatsapp.com/encrypting-your-whatsapp-chat-backup-just-got-easier') that it is adding passkey-encrypted chat backups, allowing users protect their stored messages using Touch ID or Face ID instead of a 64-digit key.
This is incorrect. The backups are always encrypted with a 64-digit key, and that key is always also stored in encrypted form on-device (in the secure enclave). It was always the case that if you forgot the password and/or the key, you could still decrypt the backup as long as you have the device that the key is stored on. Decrypting the key requires Face ID or Touch ID (or the device passcode I suppose). You only need the password and/or key to decrypt the backup on a different device. (If you reset your iPhone, that would count as a different device as well.)

If one chooses the option to use a password, the encrypted key is also stored in a Hardware Security Module hosted by Meta. This allows to still decrypt an encrypted backup from a different device using just the password. (Meta still won't get access to the decrypted key other than on-device.)

The new passkey option now is just a variant of the existing password option, with the difference that you don't have to take care of remembering the password (or saving it in a password manager), as passkeys are automatically stored in the iCloud keychain. (You may still have to take extra steps to synchronize them between iOS and Android.)
Score: 2 Votes (Like | Disagree)