Olay müdahalesi, güvenlik olaylarını (ihlaller, saldırılar) yönetme sürecidir — tespit etme, kontrol altına alma, ortadan kaldırma, kurtarma ve öğrenme. İhlaller savunmalara rağmen meydana gelebileceğinden, hasarı sınırlamak için etkili bir şekilde yanıt vermek için bir planın olması önemlidir.
Neden önemli
Despite defenses, security incidents WILL happen (no system is perfectly secure):
→ being PREPARED to respond limits damage, downtime, and data loss
→ a poor/slow/panicked response makes breaches far worse
→ have a PLAN before you need it (you can't improvise a good response mid-crisis).
Olay müdahalesi yaşam döngüsü
1. PREPARATION → plan, tools, roles, runbooks, monitoring/logging in place beforehand
2. DETECTION & ANALYSIS → identify the incident (monitoring, alerts); assess scope/severity
3. CONTAINMENT → stop the spread/limit damage (isolate affected systems, revoke access)
4. ERADICATION → remove the threat (close the vulnerability, remove malware/access)
5. RECOVERY → restore systems safely; verify they're clean; resume operations
6. POST-INCIDENT (lessons learned) → analyze what happened, improve defenses & the process
(BLAMELESS — focus on fixing, not blaming)
