Lock down your Mac if you’re targeted by a cyberattack
You can strictly limit apps, websites, and features if you believe you’re being personally targeted by a highly sophisticated cyberattack.
Lockdown Mode is an optional, extreme protection that’s designed for the very few individuals who, because of who they are or what they do, might be personally targeted by some of the most sophisticated digital threats. Most people are never targeted by attacks of this nature.
Turn on Lockdown Mode
On your Mac, choose Apple menu
in the sidebar, then click Lockdown Mode on the right. (You may need to scroll down.)Click Turn On.
Click Turn On Lockdown Mode.
Click Turn On & Restart.
Enter your login password, then click OK.
After your Mac restarts, you can turn off Lockdown Mode for individual websites. See Customize settings for each website in Safari.
Turn off Lockdown Mode
On your Mac, choose Apple menu
Click Turn Off.
Click Turn Off & Restart.
Enter your login password, then click OK.