Notification shows IP address on Mac is compromised

Are you seeing it in the upper right corner of your Mac as an actual Notification?

If so, it is a fake notification brought to you by a website that you have allowed to send you those notifications. To get rid of it, open Safari, then go to Safari > Settings > Websites > Notifications, and remove all websites you see there.

If that is not it, Websites can pop up anything they want and are paid for ads that claim such things so you will download some kind of software. In most cases you can close the page or navigate to a different one. If you find you are unable to do that, quit Safari, then hold the Shift key and open Safari again. This will open Safari to the default page without showing the last page opened.

Joseph Fabricatore wrote:

How to get out of this situation? How to close out? Restart?

[Re-Titled by Moderator]

Original Title: Message not to try to shut down or close my computer because my IP address is compromised

Say what?

Recognize and avoid phishing messages, phony support calls

Recognize and avoid social engineering schemes including phishing messages, phony support calls, and other scams - Apple Support

Block pop-up ads and windows in Safari

Block pop-up ads and windows in Safari - Apple Support

Stop unwanted Notifications

Stop unwanted Notifications - Apple Community

Log out, sleep, wake, restart or shut down your Mac

Shut down or restart your Mac - Apple Support

You can always force quit a shutdown by holding the power button/TouchID for ~6-10 sec.

Force Shut down your Mac.

Uninstall all third party apps that are Cleaners/Optimizers/VPN/Anti-Virus

all known to cause issues on the macOS

Just close the window. It's a scam.