The Reality Check: What Data Shows
Microsoft's Detection and Response Team (DART) has refined incident response readiness after supporting organizations in 54 countries. Their Information Security Incident Response Readiness Workshop reveals a common issue: most incident response plans falter during execution, not in documentation. When under pressure, ownership becomes unclear, findings remain isolated, and decisions stall, allowing threats to spread.
The workshop's structure reflects DART's insights from real-world cases. Over 2 or 3 days, it includes knowledge-transfer sessions, realistic scenarios, guided discussions, and threat hunting exercises. This isn't a compliance exercise; it's a controlled stress test of how your team coordinates detection, containment, and communication simultaneously.
Key Findings
Visibility Gaps in Critical Moments. The workshop evaluates if your logs and telemetry support timely decisions against real threats across identity, endpoint, cloud, and communications. Many teams find their security stack generates data but lacks the specific signals needed for quick containment decisions. If your SIEM collects events but your team can't quickly answer "which accounts accessed this resource in the past 72 hours," you have a telemetry problem.
Predictable Coordination Breakdowns. DART's approach tests how IT, security, legal, communications, and leadership interact during an incident. Scenarios reveal unclear escalation thresholds, competing priorities, and incorrect assumptions about response ownership. These issues don't appear in your plan because it describes ideal workflows, not real-time handoffs.
Varied Threat Hunting Capabilities. Exercises show whether your team can pivot from an alert to broader threat hunting: identifying persistence mechanisms, mapping lateral movement, and reconstructing attacker timelines. Many organizations invest in detection technology but neglect the skills and processes needed to turn an alert into a complete incident narrative.
Unpracticed Response Plans. DART emphasizes active participation. If those leading containment or communicating with executives haven't worked through a scenario together, your first real coordination will occur during a crisis. The workshop forces these conversations in a controlled environment, turning mistakes into learning opportunities.
Implications for Your Team
You can't gauge incident response readiness through documentation alone. Your IR plan might meet compliance and audit requirements, but it doesn't predict how quickly your team can isolate a system, determine scope, and brief executives accurately.
Risk managers should view incident response readiness as a capability that degrades over time. Staff turnover, technology changes, and evolving threats all erode preparedness. If your last tabletop exercise was over a year ago, your readiness is unknown. If your scenarios don't reflect actual threats, you're preparing for the wrong incident.
The workshop model highlights a gap in IR maturity. You likely track mean time to detect and respond, but do you measure how long it takes to assemble decision-makers, access findings, or determine if containment will disrupt business processes? These timelines often dominate incident duration but rarely appear in assessments.
Action Steps
Inventory Response Dependencies. Before your next tabletop, document which teams must coordinate during containment, what data investigators need, and which executives must approve actions. Design scenarios that stress these dependencies. If legal must review notifications within four hours, simulate that constraint.
Test Telemetry with Specific Questions. Don't just check if logs are collected. Identify the top five questions your IR team needs to answer in the first hour of an incident, then confirm your tools can provide those answers quickly. Common gaps include querying historical logs, visibility into lateral movement, and fragmented telemetry.
Conduct Hands-On Exercises. In your next IR exercise, require participants to use actual tools, access real data, and document findings as during a live incident. Presentation-based tabletops miss the friction points that emerge under time pressure.
Clarify Decision Rights. Use exercises to identify who can isolate systems, engage counsel, or notify regulators. If decisions need executive approval, test if executives can be reached and briefed within your timeline. Many discover their escalation process assumes 24/7 availability that doesn't exist.
Measure Coordination Speed. Add metrics for how long it takes to assemble your team, share findings, and reach containment decisions. If detection is measured in minutes but coordination in hours, focus improvement efforts there.
Microsoft Detection and Response Team (DART)
Microsoft Defender Experts Information Security Incident Response program documentation
NIST Cybersecurity Framework
