Intelligence-led red team tests differ from conventional penetration tests, which provide a detailed and useful assessment of technical and configuration vulnerabilitiesa weakness, susceptibility or flaw of an asset, system, process or control that can be exploited often of a single system or environment in isolation, but contrary to the former, do not assess the full scenario of a targeted attack against an entire entity, including the complete scope of its people, processes and technologies. During the selection process, financial entitiesas defined in Article 2, points (a) to (t) should ensure that testers possess the requisite skills to perform intelligence-led red team tests, and not only penetration tests. This Regulation establishes comprehensive criteria for testers, both internal and external, and threat intelligenceinformation that has been aggregated, transformed, analysed, interpreted or enriched to provide the necessary context for decision-making and to enable relevant and sufficient understanding in order to mitigate the impact of an ICT-related incident or of a cyber threat, including the technical details of a cyber-attack, those responsible for the attack and their modus operandi and motivations providers, always external. In case the threat intelligenceinformation that has been aggregated, transformed, analysed, interpreted or enriched to provide the necessary context for decision-making and to enable relevant and sufficient understanding in order to mitigate the impact of an ICT-related incident or of a cyber threat, including the technical details of a cyber-attack, those responsible for the attack and their modus operandi and motivations provider and the external testers are part of the same company, the staff assigned to the test should be adequately separated. Acknowledging the evolving state of this market, there may be exceptional circumstances where financial entitiesas defined in Article 2, points (a) to (t) are unable to secure suitable providers who meet these standards. Therefore, financial entitiesas defined in Article 2, points (a) to (t), upon evidencing the unavailability of fully compliant and suitable providers, should be permitted to engage those who do not satisfy all criteria, conditional upon the proper mitigation of any resultant additional risks and to an assessment of all these elements by TLPT(threat-led penetration testing) a framework that mimics the tactics, techniques and procedures of real-life threat actors perceived as posing a genuine cyber threat, that delivers a controlled, bespoke, intelligence-led (red team) test of the financial entity’s critical live production systems authority.