Although this name is also used to refer to a type of malware, originally RAT (Remote Administration Tool) was created for a good purpose: to help remotely manage setup and resolve IT problems instantly and effectively.

For example, if you authorise an IT technician to take control of your computer, and they start to move the cursor on your screen, this is due to a legitimate RAT, previously installed by the user themselves to allow remote connection by anyone they trust.

But like any other digital application, it can also be used for wrongdoing. The dark side of RAT is known as a Remote Access Trojan: a trojan which uses the back door to access your device. In the hands of cybercriminals, it can become a very damaging weapon.