Great question—especially since antivirus software continues to add more and more components to help keep you safe online. At absolute bare minimum, your app should have a scanner to protect against malware and online threats like phishing sites and a firewall. But other services like remote access protection, individual file encryption, and a password manager can be helpful too. Our breakdown of antivirus software features lays out the details you need to know, so that you can decide what you need.