Messaging platform WhatsApp has implemented an additional layer of security for its billions of global users, introducing end-to-end encryption for chat backups on Android and iOS devices starting in 2025. except by the user himself.
Previously, chat backups could be vulnerable across storage providers. With the update, content can only be accessed and decrypted through authentication using biometrics or passkeys, simplifying and strengthening protection.
The innovation eliminates the need for complex 64-digit keys, making security more accessible.
– Encryption is applied to the device before shipping.
– Há support fingerprint, Face screen ID or PIN.
– The functionality benefits more than two billion users.
New data protection mechanism
Conversations are backed up directly on the user’s device before being uploaded to the cloud. Esse process ensures that even if the backup file is intercepted, its contents remain unreadable without the decryption key, linked to the account owner’s authentication.
Only the owner can decrypt the files using their biometric credentials. Provedores like Google and Apple do not access encrypted content, aligning the application with global privacy standards.
Enabling encryption on Android
Users of Android devices can easily enable the new encryption. The process begins by opening the WhatsApp application and accessing the Configurações menu, usually in the three vertical dots in the top right corner.
Then, the user must select “Conversations” and, subsequently, “Conversation backup”. Dentro from this menu, you need to tap “End-to-end encrypted backup” and then activate the functionality.
The final step involves choosing passkey authentication, which integrates the device’s biometrics. Basta confirm with fingerprint or PIN, and the encrypted backup will start automatically after updating on Google Play Store.
Setup for iOS users
For iPhone owners, setting up end-to-end encryption on backups follows a similar path. Dentro of WhatsApp, you need to navigate to “Settings”, then “Chats” and “Chat backup”. The “End-to-End Encrypted Backup” option will be presented for activation, protecting data in the cloud.
Choosing passkeys allows the use of Face ID or Touch ID to authenticate and restore backups, offering extra security. Recomenda disable automatic iCloud backups that do not use this new encryption. Updating the application on App Store is essential for immediate access.
Benefits of Biometric Authentication
Passkeys, which use biometrics, represent a significant evolution in digital security. Elas dramatically reduce the risks associated with phishing attacks, which often exploit traditional passwords.
The technology behind passkeys is based on public encryption, linked directly to the user’s device, making each access attempt more robust against fraud. Isso eliminates the need to memorize complex passwords.
For business users and professionals dealing with sensitive data, the protection offered is critical. Enhanced security ensures the confidentiality of strategic information and important communications.
This functionality covers the protection of messages, media files and calls, integrating perfectly with the smartphone’s existing screen lock system, providing a fluid and efficient security experience.
Evolution of security on WhatsApp
WhatsApp has a history of continually improving its security tools. End-to-end encryption for conversations was introduced in 2016. In 2021, cloud backups received optional protection with security keys. Agora, in 2025, the integration of passkeys simplifies authentication, making advanced security accessible. Meta has expanded encryption coverage to include groups and calls, strengthening user trust.
Configuration recommendations
When configuring biometric encryption for backups, it is critical that the user maintains their credentials in a secure environment. Loss of access, due to forgotten PIN or failed biometrics, may result in permanent data blocking, as WhatsApp does not recover encrypted backups without correct authentication.
It is recommended to test the backup restore on a secondary device. It’s important to regularly monitor app updates and avoid sharing devices with biometric authentication enabled to ensure exclusivity of access.
Choose between protection options
Passkeys offer convenience by eliminating long passwords. Para For those who prefer manual control, custom passwords are a robust alternative. The 64-digit Chaves, while complex, caters to advanced users looking for a level of granular control over their security.
