Stolen Device Protection: why a thief who knows your iPhone passcode still gets stuck
Away from home or work, the setting demands Face ID for saved passwords and imposes an hour-long wait before account changes. It takes a minute to switch on.
A phone snatched by someone who has already watched you type your passcode is the case Apple built Stolen Device Protection for. Without it, the passcode alone is enough to change your Apple Account password and open your saved passwords. With it, the passcode stops being the master key.
What changes
When your iPhone is away from familiar places such as home and work, two extra checks apply.
- Face ID or Touch ID, with no passcode fallback. Needed to use passwords and passkeys in Keychain, use cards saved in Safari AutoFill, erase the phone, turn off Lost Mode, or set up or transfer an eSIM.
- A one-hour security delay. Changing your Apple Account password, signing out, changing the passcode, adding or removing Face ID or Touch ID, and turning the feature off all need a biometric check, then an hour’s wait, then a second check.
That hour is the window to mark the phone as lost on iCloud.com and lock down the account. Apple Pay still works with the passcode, and at home or work the phone behaves as normal.
Switching it on
- Open Settings, then Face ID & Passcode (or Touch ID & Passcode).
- Enter your passcode.
- Tap Stolen Device Protection and turn it on.
You need iOS 17.3 or later, two-factor authentication on your Apple Account, a device passcode, Face ID or Touch ID, Find My, and Significant Locations under Location Services. It may already be on; the same screen tells you.
Two settings worth knowing
- Everywhere, not just away: on the same screen, choose “Always” under Require Security Delay and the rules apply at home too.
- Before you sell, gift or trade in the phone: turn it off first. Doing that away from a familiar place starts the security delay.
It only helps if it is on before the phone goes missing; it cannot be enabled afterwards.
Photo: An alarm clock and a white phone on a desk, an illustration rather than an iPhone. By freestocks.org, CC0, via Flickr.
Source: Apple Support, “About Stolen Device Protection for iPhone”, support.apple.com/en-us/120340, read 18 October 2026.
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