Deleted Gmail accounts can be recovered within 30 days using Google's recovery page and correct credentials.Verifying ...

You can set up your recovery key using your iPhone, iPad, or Mac. Every Apple Account can only have one recovery key, meaning that once you set it up on a single device, it'll apply to all devices ...

Starting with iOS 17, your iPhone can help you get rid of verification codes you get in the Mail or Messages app. Here's how to set it up.

How to use 2FA on older Apple devices that won’t let you enter a verification code. Apple has a workaround that supports two-factor authentication where it canu2019t be entered directly.