A computer virus is designed to infect programs & files with malicious code, changing how a computer operates and spreading across systems.

What is a VPN? What does it do? How does it work? And how can you use a VPN? Learn all about a VPN's definition and uses in our guide.

Wondering why your internet speed is slow? Learn how to improve your internet connection right now, whether you're on Wi-Fi or Ethernet.

We all have some concept of hacking - but do you really know what it is? Read our full hacking definition here.

What is biometric data? Find out how biometric data works, how fingerprints can secure your data, and learn the security risks of biometrics.

When it comes to data privacy, which is better — Proxy vs VPN or Tor vs VPN? Learn the differences between VPNs, proxies, and Tor.

Keep your online life private by hiding apps on your Android phone. Learn how to hide apps on your phone with an easy step-by-step guide.

What is a firewall, how does it work, and do you need a firewall at home? Learn all about the different types of firewalls and how they're used.

Discover what a RAR file is, why they’re useful, and how to safely open and extract .RAR files on Windows, Mac, or smartphones.