Home Report, Respond and Recover Respond and recover from ransomware

Respond and recover from ransomware

Published:

Aug 13, 2025

Updated:

AUG 20, 2025

Who can use this content?

Individuals

Ransomware is a type of malicious software that locks your files or device until a ransom is paid—often in cryptocurrency.

If you’re hit by ransomware, acting quickly and carefully can help reduce damage and possibly avoid data loss.

What do I do if its ransomware?

Follow the steps below if you believe you are a victim of a ransomware attack.

Disconnect and isolate your device immediately

To prevent the ransomware from encrypting more files or spreading:

  • Disconnect from the internet: Turn off your wi-fi, mobile data or remove the ethernet cable.
  • Disconnect external drives: Remove USB drives, external hard drives, or mobile devices that are connected to prevent the ransomware from spreading.
Reset your credentials
Ensure you reset the passwords for critical accounts such as administrator, but take care to avoid locking yourself out of essential systems required for recovery.
Do NOT pay the ransom

There is absolutely no guarantee your files will be restored. DO NOT PAY!

Reinstall operating system software

Safely wipe the infected device and reinstall the operating system (OS).

Restore from backup

Before restoring your device from a backup, make sure it is completely free from malware or viruses. Only restore from a backup when you are confident that backup is secure and clean.

Reconnect device

Reconnect your device to download and install the latest software security updates.

Install antivirus or antimalware software

Download, install and update your antivirus software.

Monitor activity

Scan and monitor your device for any suspicious activity.