Cyber-security-caution.win is a malicious domain intending to display a lot of scary content in your browser. Most likely the occurrence of this particular pop-ups is explained by the presence of certain nasty adware in your system. There may be other malicious programs operating in your system along with these adware samples. Suddenly, almost out of the blue, you may see this scary cyber-security-caution.win pop-ups telling you about all sorts of problems supposedly identified in your computer. In this guide we will tell you more about what could cause these nasty pop-ups to appear in your system and what needs to be done to disable them effectively.