Lockdown mode is a security feature available on some phones that provides additional protection against cyber attacks. Heres what lockdown mode does on different devices:

Apple Devices

• Lockdown mode is an optional, extreme protection designed for individuals who might be personally targeted by highly sophisticated digital threats.
• When lockdown mode is enabled, certain apps, websites, and features are strictly limited for security, and some experiences might not be available at all.
• Configuration profiles cant be installed, and the device cant be enrolled in Mobile Device Management or device supervision while in lockdown mode.
• Phone calls and plain text messages continue to work while lockdown mode is enabled, and emergency features such as SOS emergency calls are not affected.
• To turn on lockdown mode on an iPhone or iPad, go to Settings > Privacy & Security > Lockdown Mode, then tap Turn On Lockdown Mode.

Android Devices

• Lockdown mode was introduced in 2018 and is designed to protect private information on Android devices from cyber attacks.
• When lockdown mode is enabled, it disables a number of the more convenient but less secure ways to unlock your phone.
• The only way to unlock your phone when lockdown mode is enabled is through a highly secure PIN, password, or pattern.
• To enable lockdown mode on an Android device, go to Settings > Security > Lock Screen > Show lockdown option.

Its important to note that lockdown mode is an extreme security measure that is not necessary for most people. It is intended for individuals who might be personally targeted by highly sophisticated digital threats, such as diplomats, journalists, lawyers, politicians, or activists dealing with sensitive information that cant be publicly exposed.