iOS 15 Password Authenticator – iOS 15 Password Manager will feature Multi-Factor Authentication (MFA/2FA) using Verification Codes - it's time to Remove Google Authenticator.

With the release of iOS 15, Apple intends to tighten security and make it easier for users to protect their accounts online, with inbuilt Multi-Factor Authentication (MFA) or Two-Factor Authentication (2FA) verification codes.

There’s a lot of people starting to shift away from tools like 1Password, and iCloud is certainly a convenient option.

Unlike other authenticator apps which generate tokens every 60 seconds, the iCloud Keychain will generate codes every 30 seconds.

This might seem too quick, however the verification codes are built into the iOS so it will be much easier to enter the codes directly through the browser without needing to copy and paste the codes – more secure and easier.

Generate verification codes needed for additional sign-in security. If a site offers two-factor authentication, you can set up verification codes under Passwords in Settings — no need to download an additional app. Once set up, verification codes autofill when you sign in to the site.
– Apple

Even better, your iCloud Verification Codes will syncronise across all of your devices.

How many times have you left your phone in the other room which you’re on MacOS, soon the codes you setup on your iPhone will be available on your iPad and MacOS for seamless access.

How to

Open your iPhone Settings then Passwords
Next you’ll see a list of your website which you’ve previously saved in your iCloud keychain
Tap on the website you need to setup an authentication code for, if not, add it to the list
Next, tap the Set Up Verification Code button

Just like any other Authenticator App (Google/Microsoft) you can then:

a) Either copy and paste the code from your service provider, or
b) Scan the QR code instead