Purple Teaming — How Red and Blue Teams Work Together to Strengthen Defences

Beyond the Adversarial Model

Traditional red team engagements operate on an adversarial model — the red team attacks, the blue team defends, and neither shares information with the other until the final report. This model produces valuable findings, but it has a limitation: learning happens only at the end, in the debrief.

Purple teaming changes the model. Instead of operating in isolation, the offensive team (red) and the defensive team (blue) collaborate throughout the engagement — sharing tactics, techniques, and procedures in real time. The red team executes attack scenarios. The blue team attempts to detect and respond. And when detection fails, both teams work together immediately to understand why and build the detection capability on the spot.

The result is not just a report of what went wrong. It is a programme of concrete improvements to your detection and response capabilities — implemented during the engagement, not months later.

For organisations in Qatar that have invested in security operations but are not confident their detection capabilities are tuned to the threats they actually face, purple teaming delivers the highest return on security investment.

How a Purple Team Engagement Works

A purple team engagement typically follows the MITRE ATT&CK framework to systematically test your detection capabilities across the full attack lifecycle:

Threat scenario development. We work with your security leadership to identify the threat actors and attack techniques most relevant to your organisation. For Qatar-based organisations, this typically includes techniques associated with regional threat actors, ransomware operators, and insider threats.

Structured attack execution. The red team executes specific techniques — initial access, execution, persistence, privilege escalation, lateral movement, data exfiltration — one at a time. Each technique is mapped to MITRE ATT&CK for consistent tracking.

Real-time detection validation. After each technique is executed, the blue team checks whether it was detected by existing monitoring, SIEM rules, and alerting systems. Detection, partial detection, and missed detections are all recorded.

Collaborative tuning. When a technique is not detected, both teams collaborate to understand why. Is the relevant log source not being collected? Is the SIEM rule misconfigured? Is there no rule at all? The detection gap is addressed immediately — new rules are written, log sources are enabled, and alerts are configured.

Coverage mapping. The engagement produces a detection coverage map — a clear visualisation of which ATT&CK techniques your organisation can detect and which remain blind spots. This becomes your roadmap for ongoing detection engineering.

Who Benefits Most from Purple Teaming

Purple teaming is most valuable for organisations that have security operations capabilities in place but want to validate and improve them:

Organisations with a SOC. Whether in-house or managed, if you have a security operations centre, purple teaming tells you whether it can detect the attacks that matter. SOC teams often monitor for known indicators but have gaps against adversary techniques they have not yet encountered.

Organisations with a SIEM investment. A SIEM is only as effective as its detection rules and log sources. Purple teaming validates your SIEM configuration against real attack techniques and identifies the rules you need but do not have.

Organisations preparing for advanced threats. If your threat landscape includes sophisticated adversaries — and for critical infrastructure operators in Qatar, it does — purple teaming ensures your defences are calibrated to the tactics, techniques, and procedures those adversaries actually use.

Organisations that have completed red teaming. If a previous red team engagement revealed detection gaps, purple teaming is the most efficient way to close them — with both teams working together to build the missing capabilities.

Frequently Asked Questions