When you download a keygen, the chances of it having some sort of malware on board are quite high, which means your PC and all the data on it are at great risk. More than a third of all hacked software that you download comes with unpleasant surprises in the form of various malware, which may include Trojans, ransomware, adware, and other viruses. I don’t think I should go into all the details, but I want to talk about some of the most serious issues you can experience. Downloading and running a keygen on your computer may bring with it a lot of problems.