Day 22 - Ransomware Awareness
Ransomware is one of the most destructive cyber threats affecting individuals, businesses, and institutions worldwide. It can encrypt files, disrupt operations, and demand payment in exchange for restoring access.
At ASRBD, we encourage everyone to understand how ransomware works and take preventive steps before becoming a victim.
How Ransomware Spreads
Ransomware commonly enters systems through:
- Phishing emails
- Malicious attachments
- Fake software updates
- Weak remote access services
- Compromised downloads
- Pirated software
Once executed, it quickly encrypts valuable files and may spread across connected devices or networks.
Prevention Best Practices
To stay safe:
- Keep offline backups of important data
- Enable automatic software updates
- Use trusted antivirus and endpoint protection
- Avoid suspicious links and downloads
- Disable unnecessary remote access
- Use least-privilege access controls
What To Do If Infected
If ransomware is suspected:
- Disconnect the device from the internet immediately
- Isolate it from the local network
- Do not attach backup drives
- Preserve evidence for investigation
- Contact cybersecurity professionals
- Restore from clean backups only
Key Takeaway
The best defense against ransomware is prevention + backup readiness.
A secure offline backup can turn a major ransomware attack into a manageable recovery event.
Stay aware. Stay backed up. Stay secure.
— ASRBD Advanced Security Researchers Bangladesh