What's the top security software to keep your PC safe? We've tested, reviewed, and rated more than 40 apps to help you choose the right security suite to protect your devices and data.

Just because you have antivirus software installed on your PC doesn't mean a zero-day Trojan can't steal your personal data. The top encryption software keeps you safe from malware (and the NSA).

ZDNET experts put every product through rigorous testing and research to curate the best options for you. If you buy through our links, we may earn a commission. Learn Our Process 'ZDNET Recommends': ...