Join our Newsletter — 33% off our NHI Course
Home FAQ Cyber Security How should organisations use red teaming to improve…
Cyber Security

How should organisations use red teaming to improve their defensive controls?

← Back to all FAQ
By NHI Mgmt Group Editorial Team Updated September 17, 2026 Domain: Cyber Security

Organisations should use red teaming to validate how well their controls hold up against realistic attack paths, not just checklist compliance. The value comes from exposing gaps in detection, response, segmentation, and user awareness. Findings should feed remediation, retesting, and purple team collaboration so defensive teams can turn attacker behaviour into measurable improvements.

Use red teaming to test control effectiveness, not just control presence

red teaming is most useful when it measures whether defensive controls actually interrupt realistic attack paths. That means testing the combined effect of prevention, detection, response, and containment, rather than asking whether a control exists on paper. The most valuable exercises start from an attacker objective and work backwards through the paths that would be most damaging if they succeeded.

For organisations, that shifts red teaming from a one-off adversary simulation into a control validation method. A good exercise should reveal whether segmentation holds under pressure, whether alerting fires early enough to matter, whether analysts can distinguish benign from malicious behaviour, and whether users follow security prompts when the scenario feels credible.

Red team results become more actionable when they are tied to a specific control outcome. For example, if the exercise showed that lateral movement succeeded because monitoring did not correlate the initial foothold with follow-on activity, the issue is not “the red team got in”, it is that the detection chain did not break the attack at the right point.

Turn findings into remediation, retesting, and cross-functional learning

The main value of red teaming is realised after the exercise ends. Findings should flow into remediation plans that assign owners, deadlines, and retest criteria, otherwise the exercise becomes theatre. The same issue should not be rediscovered repeatedly under different attack paths without a visible change in the control environment.

A mature program closes the loop between red team, blue team, engineering, and operational owners. Purple team collaboration is especially effective when it converts a single simulated attack into repeatable detection logic, better response playbooks, and improved decision-making under time pressure. That collaboration is what turns a narrative of compromise into measurable defensive improvement.

Where possible, organisations should track whether remediation reduced attacker options, not only whether a ticket was closed. Useful measures include fewer viable paths to the same objective, faster detection of the same behaviour, better containment of movement, and clearer escalation when an exercise crosses into a real incident-like state. For identity-heavy attack paths, compromised non-human identities can be especially powerful because they often carry broad access and are easy to overlook in control reviews; NHIMG’s Ultimate Guide to NHIs is a useful reference for the underlying exposure patterns.

Build red teaming around the controls you want to improve

Red teaming should not be a standalone security spectacle. It works best when it is designed around the controls that matter most to the organisation, such as alert fidelity, access restriction, segmentation, secrets handling, and incident coordination. In practice, that means choosing scenarios that stress real assumptions in the environment, then validating whether those assumptions still hold when an adversary behaves creatively.

Organisations with strong control baselines often gain the most from exercises that challenge handoffs. A red team can show whether the right people see the right evidence at the right time, whether containment actions are executable during business hours, and whether security tooling reflects what actually happened. That makes the exercise useful not only for testing resilience, but for exposing where process and technology drift apart.

For broader control mapping, CIS Controls v8 is useful for turning red team observations into specific safeguard improvements, while NIST Cybersecurity Framework 2.0 helps organise those improvements across govern, identify, protect, detect, respond, and recover. Where exercises focus on access abuse, detection gaps, and containment failures, NIST SP 800-53 Rev. 5 Security and Privacy Controls gives practitioners a deeper control catalogue to anchor remediation.

Risk and Threat Considerations

Red teaming can create false confidence if organisations treat a single successful or unsuccessful exercise as proof that controls are sound. The real risk is overgeneralising from one scenario, one time window, or one threat path and missing other attacker routes that use different initial access, privilege, or detection-evasion methods.

Failure mechanism: The exercise may validate only the specific path the team chose to simulate, while other realistic routes remain untested, or remediation may fix the visible issue without closing the underlying control weakness.

Impact: Organisations can spend heavily on red teaming and still retain exploitable gaps in segmentation, alerting, escalation, or recovery, leaving defenders with a misleading sense of readiness when a different attack path appears.

Standards & Framework Alignment

This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.

MITRE ATT&CK address the attack and risk surface, while CIS Controls v8, NIST CSF 2.0 and NIST SP 800-63 set the governance and control requirements practitioners need to meet.

FrameworkControl / ReferenceRelevance
CIS Controls v8CIS Control 8 — Audit Log ManagementRed teaming often validates whether detections and logs reveal attack activity in time.
CIS Control 16 — Application Software SecurityExercise results often expose exploitable weaknesses in applications and integrations.
Recommendation — Use Control 8 to improve logging coverage and alerting for attacker paths exposed by red team findings. Use Control 16 to harden the application weaknesses that red team scenarios successfully exploit.
NIST CSF 2.0DE.CM — Security Continuous MonitoringRed teaming directly tests whether monitoring detects adversary behaviour in time.
RS.IM — ImprovementsRed team findings should drive concrete control improvement and retesting.
PR.AC — Identity Management, Authentication and Access ControlMany red team paths succeed through excessive access or weak enforcement boundaries.
Recommendation — Strengthen continuous monitoring so validated attack behaviour produces timely detection and response. Use lessons learned to update controls, playbooks, and retest criteria after each exercise. Tighten access controls where red team activity shows privilege or segmentation weaknesses.
NIST SP 800-63Digital Identity GuidelinesIdentity proofing and authenticator assurance affect how attackers can reuse or abuse access paths.
Recommendation — Apply stronger authentication and lifecycle checks where red team paths depend on identity abuse.
MITRE ATT&CKT1589 — Gather Victim Identity InformationRed teams often validate how exposed identity information supports attack preparation and access.
T1021 — Remote ServicesLateral movement via remote services is a common attack path red teams test.
Recommendation — Reduce exposed identity data that enables attacker reconnaissance and follow-on intrusion. Harden remote service access paths and monitor them for movement after initial compromise.

Practitioner Guidance

What to prioritise: Pick scenarios that stress a control decision, not just a technical exploit. If the exercise cannot show where a control should have stopped, slowed, or revealed the attacker, it is too shallow to drive meaningful improvement.

What to verify: Require every finding to map to an owner, a fix, and a retest condition. If the same path would still work after remediation, the exercise has not yet produced a durable control improvement.

Practitioner takeaway: The best red teaming programs do not measure whether attackers can be clever, they measure whether defenders can convert that realism into faster detection, tighter containment, and better control decisions.

Deepen Your Knowledge

Sign up to our weekly newsletter — get 33% off our NHI Foundation Level Course

    NHIMG Editorial Note
    Reviewed and updated by the NHIMG editorial team on September 17, 2026.
    NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org