It is very easy for your system to get infected if it is not protected sufficiently. We can't help stressing the word "easy".
The video below shows how an unintentional visit to a malicious site results in a heavy infection of malware, spyware and viruses.
It goes without saying: Do not try this at home. Even if you think you are well protected. It is not worth the risk.
Did You Know?
Key loggers can get installed without you knowing
That's right. And that is how they are designed to be - stealth. Their job? To capture all your username, password and personal data. The data is then sent to another PC over the Internet.