Cyber security is pretty serious stuff. Malware can be hard to detect, and even harder to get rid of. The control some malware can have over your devices and potentially your life can be absolutely devastating. It's the reason I don't open any forwarded emails from my grandparents, no matter how funny they promise to be.
As well as depriving me of cute animal videos older than time, one of the ways malware can be dangerous is by using multiple devices to form what's known as a botnet. Botnets
Read more on pcgamer.com