Incident response 是处理安全事件(泄露、攻击)的过程 — 检测、遏制、根除、恢复和学习。由于即使在防御措施到位的情况下也可能发生泄露,拥有一个有效应对的计划对限制损害至关重要。
为什么这很重要
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).
incident response 生命周期
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)
