From viruses to spyware, we break down the key differences so you know exactly what you're dealing with.

When the IBM PC was new, I served as the president of the San Francisco PC User Group for three years. That’s how I met PCMag’s editorial team, who brought me on board in 1986. In the years since that ...

Firewalls scan data sent to your computer for malware and attempt to block files or other data they deem suspicious. Like ...

Spyware is designed to stay invisible, so if it’s hiding on your computer, you’re not supposed to notice—at least not right away. I want to walk you through the specific warning signs, tools, and ...

Spyware modules are related to computer viruses, but pose a different type of threat to your systems. Spyware is created by underhanded, unethical marketers who want to monitor your customers' ...

The best defence is a strong, unique password for each account. Avoid simple words or common phrases. Using a password manager can help you create and remember these complex passwords. Also, turn on ...

WASHINGTON (AP) -- Microsoft Corp., whose popular Windows software is a frequent target for Internet viruses, is offering a free security program to remove the most dangerous infections from computers ...