All iPhone settings
Settings Pathfinder · iPhone
Lockdown Mode
An optional, extreme protection feature meant only for people who believe they might be targeted by a highly sophisticated cyberattack.
In iOS 27
Settings then Privacy & Security then Lockdown Mode
“Go to Settings > Privacy & Security > Lockdown Mode, then tap Turn On Lockdown Mode.” — Apple User Guide
Where it has lived
-
iOS 17 and later
Settings then Privacy & Security then Lockdown Mode
Checked against Apple's User Guides from iOS 17 onward. Menus can differ slightly by region, language, model and installed apps.
More iPhone settings
Sources for this page
Last verified 8 Oct 2026
- 1 Harden your iPhone from a cyberattack with Lockdown Mode - Apple Support support.apple.com · guide for version 17.0
- 1 Harden your iPhone from a cyberattack with Lockdown Mode - Apple Support support.apple.com · guide for version 18.0
- 1 Harden your iPhone from a cyberattack with Lockdown Mode - Apple Support support.apple.com · guide for version 26
- 1 Harden your iPhone from a cyberattack with Lockdown Mode - Apple Support support.apple.com · current guide