Technical Guides 15 min read

Ransomware Incident Response Plan: The Critical First 24 Hours in Switzerland

Your files are locked, backups are encrypted, and an extortion note demands a six-figure ransom. The first 24 hours determine whether your organization recovers operational integrity or suffers catastrophic collapse. A battle-tested emergency response guide.

Emergency Action Rules

  • Never Power Off Systems: Disconnect Ethernet cables and disable Wi-Fi, but keep systems powered on—volatile RAM memory holds encryption keys and essential forensic artifacts.
  • 24-Hour Legal Reporting Clock: Covered entities under Art. 74b ISA must report the incident to FOCS within 24 hours of confirmation.
  • Refuse Ransom Demands: Paying ransoms finances international organized crime, provides zero recovery guarantees, and marks your company for repeat extortion.
Timeline Priority Action Responsible Party
0 – 1 hour Physical Isolation: Disconnect all network cables, drop Wi-Fi networks, and terminate site-to-site VPN links immediately. IT Systems Administrator
1 – 3 hours Activate Crisis Committee: Assemble Executive Board, Legal Counsel, and external incident response specialists using secure out-of-band communications. Executive Board / CEO
3 – 6 hours Sanctuary Backups: Physically secure offline backup media before any restoration attempt to prevent re-infection. Infrastructure Lead
6 – 12 hours Preliminary Forensics: Determine initial access vector (patient zero, compromised account) and assess data exfiltration scope. Digital Forensics Lead (Suisse IT)
12 – 24 hours Statutory Filings: Submit official notification to FOCS (Art. 74b ISA), notify FDPIC if personal data is breached (Art. 24 revFADP), and file criminal complaints with Cantonal Police. Legal Counsel / DPO