Defend from ransomware

How to defend from ransomware


Steps to defend your business from ransomware

  1. Store a copy of system images and all files for all servers and desktops. Keep a copy off-premise.
  2. Install an antivirus. Use an open source and free (as in freedom) antivirus software. Those are usually as good as commercial ones, and do not spy on you. While free versions of commercial antivirus programs are popular, they lack critical defense components. The paid ones have all features.
  3. Use a secure web access proxy and protect all your internet traffic from ransomware and other malware.
  4. For internal communications - implement Email headers analysis, authorized sender domains policy or, better yet, switch to non-email communication tools like MEGA.
  5. For externally-facing Email comms, implement Email headers and attachment analysis to filter out phishing attempts.

     

Ransomware and Malware Defense Principles:

  • Minimize the attack surface
  • Analyze and filter content and traffic
  • Educate end-users
  • Have a business continuity plan
    • System imaging
    • Continuous backups
    • Rollback options
    • Failover setups
    • ...
  • ...