Built-in protection like Microsoft Defender has come a long way, and for careful users it blocks the majority of common threats. So is a paid antivirus suite still worth the money? For many people, yes — but it depends on how you use your devices.
What built-in protection covers
Microsoft Defender handles signature-based malware detection, basic ransomware protection and browser-level phishing warnings in Edge. If you only browse mainstream sites, keep Windows updated and never open email attachments, it provides a reasonable baseline.
Where paid suites earn their keep
Independent labs consistently show paid suites catching more zero-day threats. Beyond raw detection, the practical gaps matter more: protection for phishing links in any browser, webcam and microphone control, a VPN for public Wi-Fi, identity-theft monitoring and a password manager. Buying these separately usually costs more than a bundled suite.
Who should definitely use a paid antivirus
- Households with children or less technical users sharing devices
- Anyone doing online banking, crypto or remote work on the same machine
- Owners of many devices — most suites cover 5–10 devices on one plan, including Mac and Android
- Anyone who has been phished or infected before
The bottom line
Defender is good; layered protection is better. Considering first-year deals often cost less than a takeaway dinner, a top-rated suite is cheap insurance against a very expensive day.