NUNX

Cybersecurity · Recovery

Prepare for ransomware

Reduce damage with updates, limited access and tested backups.

8 min read · General educational guidance
  1. Patch internet-facing software and avoid using an administrator account for everyday work.
  2. Keep at least one important backup that is not continuously writable from the main computer.
  3. Test restoration and write down who should be contacted during an incident.

Practical example

Keep current work in normal storage, a scheduled backup on a separate service or drive, and one protected copy that the everyday computer cannot continuously rewrite. Test restoring a folder each quarter.

Common mistakes to avoid

  • Keeping the only backup drive permanently connected and writable.
  • Backing up encrypted or corrupted files over the last clean copy.
  • Discovering during an incident that nobody knows the recovery account or key.

Trusted sources and next reading

If money, identity documents or a work system may be affected, preserve evidence and contact the relevant bank, employer or authority quickly.