Answer:
scareware
Step-by-step explanation:
The answer is scareware.
Scareware is a term given to a malware of computer virus. These are malware computer program that are designed to mislead a computer user to download and buy unimportant and fake software by providing a link to click and download the software.
People often get tricked by these pop up links in their computers and they ended up buying, downloading and installing some potentially dangerous and fake software from the internet.
These malware shows the user a fake perception that the computer is under threat.
Thus the answer is scareware.