Whether you need those extras depends on your personal situation.
These days, many security suites come with extras such as a backup service for your most essential files, Android apps for mobile security, a more advanced firewall, family protection (read: child restriction) features, and the right to use the program on multiple PCs.
But it can detect when the undisclosed vulnerability is used to install other nasty bits, like ransomware, on your machine. Antivirus software often can’t do much to stop zero-day exploits, for example. We’re not suggesting that PC security software is fool-proof.
Or get stung by a zero-day threat, where an undisclosed bug in Windows, your browser, or an installed program gives hackers entry to your system. Or accidentally click on a phishing email (it happens!). You could, for example, visit a website that unintentionally displays malicious ads.
Even if you’re well aware of potential threats and practice extreme caution, some threats just can’t be prevented without the extra help of an AV program-or a full antivirus suite. Antivirus software is nearly as crucial as a PC’s operating system.