Ransomware can enter your computer in various ways. Most often, it sneaks in via emails that ask you to click a link or has  the malware in an attachment. However, infected websites or advertisements are also a growing threat. A wrong click activates a tool in the background that searches for vulnerabilities on your computer. Once a weakness like this is found, like in old software, ransomware is downloaded and put on your computer. All of this usually happens unnoticed.