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// 15 — COLLABORATIVE DEFENCE

Purple Team
Exercises

Structured, collaborative exercises that unite red team attack simulation with blue team detection and response — building measurable, lasting defensive capability through real-time knowledge transfer.

MITRE ATT&CKDetection EngineeringThreat SimulationSIEM TuningSOC UpliftTTXD3FENDAtomic Red Team
Overview

A purple team exercise bridges the gap between offensive simulation and defensive improvement. Unlike a traditional red team engagement where the blue team is kept in the dark, purple teaming is a collaborative, knowledge-transfer-first approach: the red team executes specific techniques and the blue team attempts to detect them in real time, with immediate feedback and adjustment on both sides.

The result is measurable uplift in your detection capabilities — tuned SIEM rules, new alerting logic, validated playbooks, and a blue team that understands exactly how the techniques they now detect actually work. Purple team exercises are mapped to MITRE ATT&CK, giving you a clear, evidence-based picture of which techniques your controls cover and which remain blind spots.

Purple team exercises are particularly valuable following a red team engagement, when implementing a new SIEM or EDR platform, or when your security team needs structured exposure to realistic adversary TTPs without the opacity of a full red team operation.

Exercise Methodology
01

Scope & ATT&CK Mapping

Collaborative scoping to define the ATT&CK techniques and sub-techniques to be exercised, aligned to your actual threat landscape. We prioritise techniques relevant to the adversaries most likely to target your organisation and the detection gaps your team most needs to close.

02

Detection Baseline Assessment

Review of your current detection coverage — existing SIEM rules, EDR configuration, log sources, and alerting logic — to identify which ATT&CK techniques are already covered, partially covered, or entirely blind. This baseline sets the starting point for measurable improvement.

03

Technique Simulation

Red team operators execute each agreed technique in your environment — using tools such as Atomic Red Team, custom scripts, or manual tradecraft — while the blue team monitors their SIEM, EDR, and network telemetry in real time. Simulations are performed in a controlled sequence with agreed timing and scope.

04

Real-Time Detection Review

After each technique execution, red and blue teams review together: did the detection fire? Was the alert actionable? What log sources were available? What was missing? This immediate collaborative feedback loop accelerates learning and drives rule-writing and tuning in the moment, not weeks later.

05

Detection Engineering & Tuning

Where gaps are identified, our operators work alongside your engineers to write or improve detection rules, tune EDR policies, identify missing log sources, and validate that new detections function correctly against the technique that exposed the gap. Coverage is re-tested in the same session where possible.

06

Playbook Validation

Where your team has existing response playbooks for the techniques exercised, we validate that the playbook is triggered correctly, contains accurate and current procedural guidance, and covers the realistic variations of the technique as observed in the wild.

07

Coverage Report & Roadmap

A comprehensive ATT&CK heatmap showing pre- and post-exercise detection coverage, with detailed documentation of every technique tested, the detection result, tuning actions taken, and a prioritised roadmap for continued detection engineering to close remaining gaps.

What Makes Levantis Different

Our purple team practitioners combine deep red team technical knowledge with genuine experience in detection engineering and SIEM architecture. We don't just execute techniques and move on — we help your team understand why a detection fired (or didn't), what the technique looks like in your telemetry, and how to write durable detection logic that survives attacker variation.

We work at your pace, in your environment, with your tooling. Whether you're running Splunk, Microsoft Sentinel, Elastic, or a managed SOC, we adapt our approach to maximise the value of each session for your specific team and stack.

// Exercise Formats

  • Full ATT&CK domain coverage sprint
  • Focused tactic deep-dive (e.g. Persistence, Lateral Movement)
  • Post-red-team detection uplift
  • New SIEM / EDR onboarding validation
  • Tabletop + live simulation hybrid
  • Ongoing monthly cadence programme

// ATT&CK Tactics Covered

  • Initial Access
  • Execution
  • Persistence
  • Privilege Escalation
  • Defence Evasion
  • Credential Access
  • Discovery
  • Lateral Movement
  • Collection & Exfiltration
  • Command & Control

// Platforms & Tooling

  • Atomic Red Team
  • Splunk / Sentinel / Elastic
  • Microsoft Defender for Endpoint
  • CrowdStrike Falcon
  • SentinelOne
  • Zeek / Suricata
  • MITRE ATT&CK Navigator

// Typical Duration

  • Focused exercise (1 tactic): 1–2 days
  • Multi-tactic sprint: 1–2 weeks
  • Full ATT&CK coverage programme: ongoing

// Plan an Exercise

Ready to start building measurable detection coverage? Get in touch to discuss format, scope, and objectives.

Get in Touch

Ready to build real detection capability?

Purple team exercises deliver measurable uplift — not just findings.
Let's design an exercise programme aligned to your threat landscape and your team's current coverage gaps.

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