Computer Encrypted By Ransomware What To Do

If your computer gets encrypted by ransomware, the worst thing you can do is panic and rush into random decisions. Most damage in ransomware attacks doesn’t come from the ransomware itself — it comes from wrong human reactions in the first few minutes.

7 Critical Steps After a Ransomware Attack

• 1
  Don’t reboot or try random fixes

  The first instinct is to restart or start clicking tools found online. That usually makes things worse. Rebooting can:

  • Lock encryption fully in place
  • Destroy temporary recovery chances
  • Wipe logs that recovery experts need

  The safest move is simple: leave the system exactly as it is. Do not experiment on it.
• 2
  Disconnect from the network immediately

  This is the most important step. Unplug Wi-Fi, remove the Ethernet cable, and disconnect Bluetooth devices. Ransomware doesn’t always stay on one machine — it can spread to:

  • Shared drives and office systems
  • Cloud synced folders (Google Drive, OneDrive)
  • Other connected computers on the same network

  Think of it like cutting electricity to a fire before it spreads. Fast isolation matters more than anything else at this stage.
• 3
  Identify what exactly is affected

  Take a moment to understand the damage without interacting too much with the system. Check:

  • Which files are encrypted (documents, images, databases)
  • Any ransom note file or pop-up message on screen
  • Whether other devices on your network are acting strangely

  If this is a business system, assume worst-case until proven otherwise. Even if only one PC shows symptoms, others might already be compromised silently.
• 4
  Preserve evidence — don’t clean anything yet

  This is something most people ignore, but it matters a lot. Take photos or screenshots of:

  • Ransom messages and instructions left by attackers
  • File extensions that have changed
  • Error screens and desktop background changes

  Also, avoid deleting unknown files or “cleaning” folders. Cybersecurity experts and sometimes law enforcement use this information to identify the ransomware type and possible decryption paths. If you clean everything, you remove critical clues.
• 5
  Inform your IT team or call a cybersecurity expert

  If this is a company system, don’t try to solve it alone. Even if you’re technically skilled, ransomware incidents are not normal troubleshooting cases. A professional can:

  • Identify the ransomware family and check if free decryptors exist
  • Isolate other infected systems before they are encrypted
  • Prevent data leak escalation and double extortion
  • Guide safe recovery steps from start to finish

  If you’re on a personal PC, still consider contacting an expert before doing anything irreversible. Many people lose recoverable data just because they rushed.
• 6
  Check backups — but carefully

  Before touching anything else, think about your backups. Ask yourself:

  • Do I have a cloud backup (Google Drive, OneDrive, etc.)?
  • Do I have an external hard drive backup?
  • When was the last backup updated?

  Important caution: Do not connect backup drives to the infected system right now. If ransomware is still active, it can encrypt your backup too. First confirm the system is contained, then plan recovery.
• 7
  Report and prepare for recovery

  Once immediate containment is done, the next step is reporting and structured recovery. You should:

  • Report the incident to cybercrime authorities (especially if business data is involved)
  • Inform your cyber insurance provider if you have one
  • Document a timeline of what happened

  And one important truth: paying ransom is not a guarantee of recovery. In many cases, victims either get partial decryption or nothing at all. The focus should always be: containment → recovery → rebuilding security.

What Most People Do Wrong in Ransomware Attacks

Most damage doesn’t come from the ransomware itself — it comes from human reactions. Here are the most common mistakes to avoid:

Frequently Asked Questions