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20 June 2026 · MBITGROUP Admin

What to do if you think you've been hacked

Ransomware pop-ups, strange emails sent from your account, or money missing from the bank — here's a calm first-hour checklist for West Yorkshire business owners.

Abstract cyber code and security threat imagery

First hour: contain, don't panic

If something looks wrong — ransomware message, colleagues getting weird emails "from you", unexpected bank payments — the instinct is to click around until it goes away. Don't.

Do this first:

  • Disconnect affected PCs from Wi-Fi or ethernet (pull the cable or toggle airplane mode)
  • Don't power off servers unless we tell you to — sometimes we need memory state
  • Tell everyone to stop using shared drives until you know scope
  • Call your IT provider (or us) and your bank if money moved

Second hour: protect identities

Assume passwords on the affected account and anything linked to it are burned.

  • Reset email password from a clean device
  • Sign out all sessions in Microsoft 365 / Google admin
  • Enable MFA if it wasn't on
  • Check mailbox rules — attackers love auto-forward rules to hide in plain sight

What we look for when we arrive

We check whether it's isolated (one laptop) or estate-wide (domain admin compromised). We review backup integrity before touching anything — restoring from a poisoned backup makes everything worse.

We also look at:

  • Recent sign-in logs and impossible travel
  • New admin accounts or group membership changes
  • Scheduled tasks and startup items on PCs
  • Email transport rules and OAuth app consents

After the dust settles

Incidents are expensive, but they're also the moment most businesses finally fix the basics: MFA, tested backups, least-privilege admin, and staff awareness.

We'd rather help you before that moment. If you're reading this mid-crisis, contact us urgently — put "URGENT" in the subject and include a callback number.

Need a hand with your IT?

Book a free consultation and we'll take a look — no obligation.

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