An antivirus suite performs scans for such programs and removes these threats when it finds them -- more often than not even put up a block before loading them onto your devices. The best ...

Antivirus Software Ratings Safeguard your information with antivirus software. With frequent malware scans and a strong firewall, security software can offer 24/7 protection.

You don't have to pay extra, though. We’ve tested and ranked the best free antivirus apps. When the IBM PC was new, I served as the president of the San Francisco PC User Group for three years.