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 18
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.
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