® 
Your detection is only as good
as what you have tested.
Purple Teaming brings attack and defence together. Red Team simulates while Blue Team learns. Every session measurably improves your MITRE ATT&CK coverage.
What is Purple Teaming?
Purple Teaming brings attack and defence together in a structured collaboration. The Red Team executes attack techniques while the Blue Team watches in real time, learns and improves detection. The goal is not to score points but to get better together. Where Red Teaming tests your defences, Purple Teaming directly improves them. Every simulated technique is followed by the question: did we see this, and if not, how do we ensure we do next time?
Detection that improves with every session
Sessions are structured around MITRE ATT&CK. For each tactic and technique, current detection coverage is assessed and improved. After a Purple Team engagement, you know exactly which attack techniques you detect and which you do not, and you have taken concrete steps to close the gaps.
Detection rules are adjusted and validated on the spot. When a technique is not detected, the Blue Team creates a rule during the session. The Red Team retests immediately. The result is a measurable improvement in MITRE ATT&CK coverage, documented before and after.
Purple Teaming is most effective as a recurring programme. The threat landscape changes, your environment changes, and Purple Teaming keeps detection current. Each session builds on the previous one, closing gaps and extending coverage to new techniques.
Detection rules that have never been tested
Most detection rules are written once and never verified. They may look correct in theory but fail in practice against actual attacker techniques.
- A SIEM rule that has never been triggered by a real attack technique may have logic errors, data gaps or configuration issues that mean it will fail exactly when you need it most.
- Blue Teams that only see their own perspective cannot anticipate how attackers will behave in their environment. Exposure to real attack techniques, even in a controlled setting, builds intuition that no training course can replicate.
- A Red Team engagement tells you what is broken. Without a structured improvement process, those findings sit in a report. Purple Teaming turns findings into better detection immediately, in the same session.
What is covered in a Purple Team session
How DEFION runs Purple Team sessions
Planning
Selection of MITRE ATT&CK techniques to test based on your threat profile and current detection gaps.
Attack simulation
Red Team executes techniques in the production environment using the same tools and methods as real threat actors.
Detection evaluation
Blue Team assesses whether the technique was detected, visible in logs or completely missed.
Live tuning
For missed detections, rules are created or adjusted on the spot and immediately retested.
Documentation
Recording of results, improved rules, remaining gaps and knowledge transfer documentation.
Follow-up planning
Scheduling of the next session based on open gaps and new techniques to address.
Deliverables
- MITRE ATT&CK heatmap: before and after
- New and improved detection rules, validated during the session
- Per technique: detection status, gap analysis and remediation
- Blue Team knowledge transfer documentation
- Roadmap for subsequent sessions
- Executive summary of improved detection coverage
Which organisations benefit from Purple Teaming?
Purple Teaming is most effective for organisations with a SOC or internal security team that wants to continuously raise the quality of detection.
- Organisations with a SOC that want to improve detection quality
- Companies that want to systematically extend their MITRE ATT&CK coverage
- Security teams that want to learn from an attacker perspective
- Organisations following a Red Team engagement that want to turn findings into better detection
- Teams building a continuous improvement cycle into their security programme
Purple Teaming combines naturally with Security Control Validation and Managed Threat Detection. Validation identifies gaps across all controls, Purple Teaming closes the detection gaps collaboratively, and ongoing MDR monitoring ensures the improvements hold.
Vendor-agnostic by design
DEFION works with the tooling you already have, or brings ours. No vendor lock-in.
FAQ
What is the difference between Purple Teaming and Red Teaming?
How long does a Purple Team session take?
Does our Blue Team need to be experienced?
Which techniques are tested?
Can Purple Teaming be done remotely?
Ready to build detection that
actually catches attackers?
Tell us about your current detection maturity. We design a Purple Team programme that closes your specific gaps.