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Is Microsoft Defender enough?

Every Windows 10 and Windows 11 PC comes with Microsoft Defender Antivirus. It is switched on by default, updates itself through Windows Update and does a solid job against known malware. For many people it is a good foundation, and you should keep it on.

What Defender does well

Where a second layer helps

No single engine recognises everything. Detection engines are built differently, so one can catch what another misses, especially very new malware. A second layer is useful when you:

How Malzox fits in

Malzox does not replace Defender: it works alongside it, and Defender stays on. Malzox adds its own checks with three detection engines, including Malzox AI, our own engine. It watches your Downloads folder, pauses a program that suddenly changes or renames many of your files, as ransomware does, and blocks known dangerous and scam websites. Programs you start from outside Windows and Program Files are held for about a second while Malzox checks them.

Habits that matter more than any program

  1. Install updates for Windows, your browser and your programs soon after they arrive.
  2. Keep a backup of important files on a drive that is not always connected.
  3. Use a different password for every important account, and turn on two-step sign-in where it is offered.
  4. Be careful with attachments and links that create pressure or come unexpectedly.

Defender plus good habits is a good start. If you want a second opinion on every download and an extra guard for your files, a second layer is worth it.