According to code discovered by software researcher @aaronp613 in the latest version of the app, WhatsApp is planning to add Passkey support to its iPhone app
See also: Amazon: Adds passkey support as a new login option

Support for Passkeys will allow iPhone users to sign in to WhatsApp with Face ID, Touch ID, or their device passcode. Passkeys are stored in iCloud Keychain. To use Passkeys on iPhone, the device must be updated to iOS 16 or later.
“ Passkeys are more secure than passwords because they are uniquely created for each account on your device and are less vulnerable to physical tampering ,” Apple says . “ And they work across all devices that are signed in to the same Apple ID. your ”
It's unclear when WhatsApp plans to make this feature available to the public, but it started supporting the personal code identifier for Android last month .
See also: WhatsApp: Passkeys for logging into the app are coming soon
Many apps are starting to support Passkeys, including Amazon last week.

One of the main benefits of using WhatsApp Passkey is the increased security of your private chats. By using Passkey, you can add an extra layer of protection to your account, as other users will need the Passkey to access your chats. This means that even if someone manages to gain access to your device, they will not be able to read your chats without the Passkey.
Another benefit of WhatsApp Passkey is that it protects your account from unwanted intrusions. If you have Passkey enabled, even if someone manages to gain access to your device, they will not be able to use your WhatsApp without the Passkey. This ensures that only you have access to account and you can control who has access to your conversations.
See also: Google: Passkeys become the default login option for personal accounts
Additionally, WhatsApp Passkey offers ease of use. You can choose a numeric passcode that is easy to remember and type. This allows you to quickly access your account while ensuring the security of your private conversations.
Source: macrumors
