Malware is one of the biggest threats to the security of your computer, tablet, phone, and other devices. Learn how to protect yourself, how to tell if your device has malware, and how to remove it.

That's a lot of computers. So what's malware, and why should you care? Malware, short for malicious software, includes viruses and spyware that get installed on your computer or mobile device without …

Sep 26, 2025 · If you think there may be a problem with your computer, update your computer’s security software and run a scan. If you need help fixing a problem, go to someone you know and trust.

There’s a lot you can do to protect yourself and your computer from scammers, hackers, and identity thieves. Start by keeping your computer software up-to-date.

Ever deal with a tech support scam? A warning pops up on your computer. It says your computer has a virus and gives you a number to call for help. You often end up paying hundreds of dollars to a …

If you get a pop-up, call, spam email or any other urgent message about a virus on your computer, stop. Don’t click on any links or call a phone number. Don’t send any money. Don’t give anyone control of …

May 2, 2019 · Use your computer to commit crimes. Malware may also make your computer slow or non-responsive, serve pop-up windows or ads, or take you to sites you didn’t want to visit.

A firewall is an additional layer of protection that can help keep out viruses, malware, and even hackers. Most routers come with built-in firewalls, so check your settings to make sure your router’s firewall is …

Sep 3, 2020 · Are you getting pop-up warning messages on your computer screen? Or maybe a phone call that your computer has a virus? That may well be a tech support scam. But how do you know?

If you think you clicked on a link or opened an attachment that downloaded harmful software, update your computer’s security software. Then run a scan and remove anything it identifies as a problem.