Ransomware Checklist for the Early Hour
The Importance of the First Hour
The first 1 hour after the incident is most important. This is the time when you take decisions, you decide how much of a problem it will be and whether your insurance/claim will process smoothly or not. Taking time ensures accuracy, and accuracy speeds recovery – secure and record everything before beginning restoration.
- Maintain identity and network stability; prevent further spread.
- Preserve logs and artifacts; ensure coordination of time for forensics.
- Organize landing zone recovery; avoid hasty cutovers.

Roles and Communication
Confusion wastes time. Define roles and establish an executive briefing cadence so that leadership receives facts, not rumors.
- Lead incidents, technical monitoring, executive communications, and contact with legal/attorneys.
- Backup-enabled call tree; contact for vendor/MSP support.
- Scheduled written updates; sole source of truth.

Frequently Asked Questions
Because the actions taking place at this time can either save the data or lose it permanently. The first hour decides: how much the loss will increase, whether backups will be saved or encrypted, and whether the insurance claim will be accepted or rejected.
Yes – it is designed as a printable/laminated version so that the guide remains available even when the internet is down.
No – This guide gives damage control and the correct recovery sequence. Prevention comes from different controls (MFA, segmentation, immutability).