Incident Response Playbook

# Incident Response Playbook A ready-to-run incident response kit for small and mid-size teams: a clear operating model, five attack-specific runbooks you can actually follow at 3 a.m., and the templates that turn a stressful breach into a consistent, defensible response. Built to be **usable under pressure** — short, specific, and printable — not a 90-page binder nobody opens. > The goal of incident response isn't to never have incidents. It's to respond > *consistently and fast* when you do, limit the harm, and learn so it doesn't > recur. A mediocre plan you actually run beats a perfect plan nobody knows. --- ## Who this is for - Security, SRE, IT, or engineering leads who own "what happens when we get hit." - Startups and growing teams that need a real IR capability **before** the first serious incident — without hiring a consultancy to write a binder. - Teams preparing for SOC 2 / ISO 27001 / customer security reviews that ask "show me your incident response plan and evidence you practice it." No specific tooling is assumed. The playbooks reference capabilities (EDR, paging, logging, backups) generically so they fit your stack. ## What's inside ``` incident-response-playbook/ ├── README.md # You are here ├── LICENSE ├── docs/ │ ├── incident-response-overview.md # The operating model: lifecycle, roles, RACI, principles │ ├── severity-classification.md # SEV-1..4 matrix + decision flow + worked examples │ ├── on-call-escalation.md # On-call model, escalation ladder, paging rules │ └── tabletop-exercise-guide.md # How to practice — with 3 ready scenarios ├── playbooks/ │ ├── ransomware.md # Default SEV-1; isolate-don't-poweroff, backups, ransom │ ├── phishing-bec.md # Phishing & business email compromise / wire fraud │ ├── data-breach.md # Confirmed/suspected data exposure + notification clock │ ├── account-compromise.md # Creden

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