Similarly, viruses can infect your computer when you visit fraudulent websites. Sometimes you can inadvertently install a virus from an infected external drive, such as a USB flash drive.

How to tell if there's spyware or a virus on your computer with seven warning signs your device is infected and what to do about it ...

One sign that your computer might be infected is when you spot missing files. You may also notice new files mysteriously appearing.

Discover the common signs that your computer may have a virus and how to identify potential threats to your device.

Realizing that your computer is infected with a virus can be a heart-stopping moment, but there's no need to panic. Viruses or other malware can have a devastating effect on your PC, slowing its ...

What Is a Computer Virus, Really? You’ve heard the term, but what does it actually mean? Learn from our expert how these self-replicating programs sneak in, spread, and slow your system down ...

The discovery of the QBot malware showed how hackers are now using PDFs and WSF files to infect your computer. Learn more.