Ransomware hücumunda ilk 72 saat: cavab yoxlama siyahısı

• Alert your incident response team and management immediately; have one person coordinate decisions.
• Cut network connectivity, keep systems running and take disk and memory images.
• Reset passwords for all admin and service accounts once the attacker is contained.
• Verify that backups are isolated from the network and unmodified.
• If personal data is affected, start the regulator notification process — under GDPR and KVKK this is due within 72 hours.

• Don’t power off or reboot affected systems.
• Don’t restore from backups before the attacker’s access is cut.
• Don’t contact or pay the attacker without legal advice.
• Don’t discuss the incident over corporate email or chat that may be compromised.

1. 01

   Immutable backups

   At least one backup copy offline or immutable.

2. 02

   Exercises

   A tabletop crisis exercise at least once a year.

3. 03

   Communication plan

   Predefined out-of-band emergency communication channels.

4. 04

   Response retainer

   An agreement in place with a response team to call during an incident.

To measure your readiness, see our Ransomware Readiness & Response service.