Ransomware Protection 2026: How to Defend Against Encryption Trojans

What Is Ransomware?

Ransomware encrypts your files – photos, documents, videos – and demands payment in Bitcoin. Without backup, you're at the attackers' mercy. Ransomware attacks on individuals and SMEs have increased significantly in 2025.

How an Attack Works

1. Infection – Via email attachments (fake invoices), manipulated links, or security vulnerabilities.
2. Spread – Malware scans your network, infecting further devices, NAS, and cloud syncs.
3. Encryption – All reachable files are encrypted, often in minutes.
4. Extortion – Ransom demand: CHF 500–5000 for individuals, CHF 50,000+ for businesses.

Which Antivirus Protects Best?

• Bitdefender – Ransomware Remediation creates automatic backup copies. Safe Files protects folders from unauthorised access.
• Kaspersky – System Watcher detects ransomware behaviour and can roll back changes.
• Norton – Ransomware protection with cloud backup.
• ESET – Ransomware Shield blocks encryption attempts in real time.
• Trend Micro – Folder Shield protects folders and integrates with cloud storage.

The 3-2-1 Backup Rule

• 3 copies of your data (original + 2 backups)
• 2 different media (e.g. SSD + external drive or cloud)
• 1 copy offsite (cloud or drive at another location)

Critical: Backup media must not stay permanently connected – ransomware encrypts connected USB drives and synced cloud folders too.

8 Prevention Measures

1. Use antivirus with ransomware protection.
2. Keep all software updated.
3. Be cautious with email attachments.
4. Disable Office macros by default.
5. Follow the 3-2-1 backup rule.
6. Segment your network (especially for SMEs).
7. Enable two-factor authentication everywhere.
8. Train employees on phishing recognition.

What to Do If Attacked

1. Disconnect from network immediately.
2. Don't pay – no guarantee of recovery, and it funds more attacks.
3. Report to authorities.
4. Check NoMoreRansom.org – free decryption tools for many variants.
5. Restore from backup.

Verdict

Ransomware is one of the biggest cyber threats of 2026. The combination of a good antivirus (Bitdefender, Kaspersky, Norton) and a solid backup strategy provides the best protection. Set up automatic backups today.