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MalwareHigh priority

Enable real-time virus protection on all devices

Make sure a reputable antivirus / anti-malware tool with real-time scanning is active on every computer you use.

Why this matters

Real-time protection catches and quarantines malware before it can do damage — including ransomware that would otherwise encrypt all your files.

How to do it

  1. Windows: Windows Security (built-in) provides good protection at no extra cost
  2. Search for 'Windows Security' in Start
  3. Click 'Virus & threat protection' — ensure real-time protection is On
  4. Mac: macOS has built-in XProtect. Consider Malwarebytes Free for extra scanning
  5. Android/iOS: keep the OS updated — this is the primary malware defence on mobile

Cyber Essentials framework

This task falls under the Malwarecontrol — one of five areas assessed in the UK's Cyber Essentials scheme. Completing it counts toward your Cyber Essentials alignment.

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