How to prepare for a TLPT engagement
A TLPT is high-stakes: real attacks on production, strict governance, and defenders who must not be tipped off. These steps make the engagement both safe and useful.
Get the baseline right first
TLPT is not the place to discover basic issues. Run your routine testing programme — vulnerability assessments and penetration tests — and remediate the known problems before staging a full red-team engagement.
Build a trusted White Team
A small, discreet control group (often called the White Team or Control Team) plans and oversees the engagement while keeping the defending blue team genuinely unaware. This secrecy is what makes the detection-and-response test realistic.
Choose qualified providers
- Verify that threat-intelligence and red-team providers meet the framework’s independence and competence criteria.
- Engage them early — good providers plan months ahead.
- Not every penetration-testing firm qualifies for TLPT specifically.
Agree the rules of engagement
- Define scope, targets and objectives with the authority where required.
- Set clear boundaries and safety mechanisms for testing live systems.
- Establish escalation and emergency-stop procedures.
After the engagement
- Run the purple-team replay to compare attacker actions with defender visibility.
- Agree and prioritise a remediation plan.
- Where required, obtain the attestation confirming the test met the framework.
- Feed lessons back into your defences and next testing cycle.
FAQ
Related questions
How long does a TLPT take?
Typically several months end to end — covering preparation, threat intelligence, weeks of active red teaming, and the closure and remediation phases.
Should our security team know about the test?
Only a small, trusted control group should know. Keeping the defending blue team unaware is what makes the detection-and-response measurement realistic.
What happens if the red team causes an issue on live systems?
Agreed rules of engagement, safety mechanisms and emergency-stop procedures are established up front precisely to manage this. Experienced providers work carefully within those boundaries.
Keep reading
More guides
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What is TLPT? Threat-led penetration testing explained
TLPT is an intelligence-led red-team attack on your live systems, mandated by DORA for significant entities. Here is what it involves.
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TLPT vs penetration testing: what is the difference?
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