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Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. August 13, 2025 Add as ...

An iPhone passcode is a security feature in the form of a four-digit number or longer code, used to protect your device from unauthorized access. But what happens when you lose or forget this passcode ...

In iOS 17, if you change your iPhone's passcode and forget it soon after, Apple offers you a 72-hour grace period to fix it without getting locked out of your device. Here's how it works. In iOS 17 ...

Posts from this author will be added to your daily email digest and your homepage feed. is a senior reporter and author of the Optimizer newsletter. She has more than 13 years of experience reporting ...

Having an unlocked iPhone–without so much as a four-digit barrier between you and some subway snatcher–is asking for trouble. Four-digit passcodes or PINs were the only way to secure the earliest ...

Bank security codes sent via text may not be enough. Learn why authenticator apps and passkeys offer stronger two-factor ...

From phones to bank accounts, most of us juggle several passwords, PINs, and passcodes, making it hard to keep track of all of them. Maybe it's happened to you: you pick up your iPad, swipe to unlock ...