Phishmael & FriendsFake virus warnings, sometimes called scareware, use sirens, flashing colours and countdowns to make people panic and phone a "support" number.
On the other end is a scammer who asks for payment or remote access to the computer.
The pop-up is just a picture on a website. It can't see inside the device.
Teach a simple routine: close it, don't call, tell a grown-up. If it won't close, close the whole browser.
The rule from the episode: scary pop-up? Close it, don't call.
The rule: Scary pop-up? Close it, don't call.