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Incident Response Playbook for Developers

Incident Response Playbook for Developers

Incident Response Playbook for Developers

Incident Response Playbook for Developers

Incident Response Playbook for Developers

Incident Response Playbook for Developers

Incident Response Playbook for Developers

Incident Response Playbook for Developers

Incident Response Playbook for Developers

Incident response is the structured process of handling security breaches and cyber attacks. Every development team needs a plan, because it is not a matter of if an incident will happen, but when. This article presents a practical incident response playbook based on the NIST SP 800-61 framework.

The NIST Incident Response Framework

The NIST framework defines four phases: Preparation, Detection and Analysis, Containment Eradication and Recovery, and Post-Incident Activity. We add a fifth phase, Triage, between Detection and Containment.

Phase 1: Preparation

Preparation is the most important phase. Without preparation, every incident becomes a chaotic scramble.

Build a response team: Identify who handles security incidents. The team should include a incident commander, a security analyst, a system owner, a communications lead, and a legal representative.

Create runbooks: Document step-by-step procedures for common incident types: phishing, malware outbreak, data breach, ransomware, denial of service, and insider threat.

Set up tooling: Ensure the team has access to:

• Centralized logging (SIEM like Splunk, ELK, or Sentinel)

• Endpoint detection and response (EDR like CrowdStrike or Defender)

• Network monitoring and packet capture

• Secure communication channels (Slack, Teams, or Signal)

• Evidence collection tools (FTK Imager, Volatility, tcpdump)

Practice regularly: Run tabletop exercises every quarter. Simulate a ransomware attack, a data exposure, or a compromised credential. Practice builds muscle memory.

Phase 2: Detection and Analysis

Detection relies on monitoring and alerting. Every alert is a potential incident candidate.

Alert sources:

• SIEM correlation rules detecting anomalous patterns

• EDR alerts for malware execution or suspicious process behavior

• Cloud provider alerts (GuardDuty, Security Command Center, Defender)

• Application logs showing unusual error rates or access patterns

• User reports of suspicious activity

Triage questions:

• What happened? What systems are affected?

• When did it start? Is it ongoing?

• What is the impact? Data loss? Service disruption?

• Is this a true positive or a false alarm?

• What severity level applies?

Severity classification:

• SEV-1: Critical. Active data exfiltration, ransomware, or service-wide compromise. Immediate response required.

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