Standardised incident response playbooks for a university IT team.
Incident response succeeds or fails on speed, consistency, and clarity. When a team has to improvise the process mid-incident, they lose time and introduce risk. This project designed and delivered a set of structured, scenario-driven playbooks that turn uncertainty into repeatable steps — so responders can move quickly without inventing the process under pressure.
The problem
Incident response that depended on who happened to be available.
Improvised response
Without standardised playbooks, incident response meant improvising under pressure. Different team members handled the same incident type differently, creating gaps and inconsistency at exactly the wrong moment.
Lost time
Responders spent critical early minutes deciding who owns what, what evidence to capture, and when to escalate — questions that should already be answered before the incident starts.
No lessons loop
Without a consistent post-incident structure, improvements from one event rarely made it into the next response. The same decision points kept reappearing without resolution.
Five phases. Every incident follows the same path.
The playbooks are built around the Delinea 5-phase model: Discovery, Containment, Eradication, Recovery, and Lessons Learned. Each phase has its own focus, checklist, and decision checkpoints — so responders always know where they are in the process and what comes next.
The structure is predictable by design. A responder who has used one playbook can navigate any other without relearning the format. That consistency matters most during high-stress events, when cognitive load is already high.
Framework alignment — NIST, ISO/IEC 27001, ACSC Essential Eight — means the outputs are defensible to stakeholders and compatible with broader security governance requirements.
Discovery
- Confirm the incident and establish initial scope
- Triage severity — what systems, users, or data are affected?
- Capture early evidence before changes are made
- Identify escalation triggers and decision checkpoints
Containment
- Stop spread while preserving forensic value
- Short-term containment: isolate affected systems
- Long-term containment: patching, credential resets
- Document risk tradeoffs — availability vs integrity
Eradication
- Validate the root cause hypothesis
- Remove malicious artefacts or misconfigurations
- Reset credentials and keys where required
- Confirm known-good state criteria before proceeding
Recovery
- Restore services in controlled, staged steps
- Run integrity checks and validation
- Apply increased monitoring and alerting
- Obtain sign-off criteria before returning to BAU
Lessons Learned
- What went well — and what slowed the response?
- Identify control gaps and recommended uplift
- Update documentation and runbooks
- Assign follow-up actions with owners and due dates
What a playbook answers before the incident starts
A well-designed playbook pre-answers the questions that slow teams down during an incident. Who owns initial triage? What evidence needs to be captured before anything is changed? What's the threshold for escalating to senior stakeholders? What does "contained" actually mean for this scenario?
Each playbook includes explicit role expectations, decision points with stop/continue triggers, evidence capture guidance, and comms and escalation checkpoints. The aim is to reduce ambiguity to near zero — so responders can focus on the incident, not on figuring out the process.
Every playbook covers
What this incident looks like — signals and triggers
Scope and impact considerations
Immediate actions and decision points
Evidence capture and containment
Eradication and recovery validation
Communications and escalation checkpoints
Lessons learned prompts and follow-up actions
What this enables
Faster response. Fewer gaps. Better handovers.
Consistency
Same structure and terminology across every incident type — responders navigate each playbook the same way, even under pressure.
Speed
Checklist-driven steps and pre-answered decision points reduce the time lost to uncertainty at the start of an incident.
Escalation clarity
Explicit role expectations and escalation checkpoints reduce 'who does what' confusion during high-stress events.
Post-incident loop
Structured lessons learned feeds directly into controls and documentation improvement — not just a debrief that disappears.
Frameworks and standards
Want to standardise how your team responds to security incidents?
Let's talk about building playbooks that reduce ambiguity, support responders under pressure, and feed improvements back into your security posture.