What Is TLPT and Why Is It Important?

Threat Led Penetration Testing (TLPT) and Red Teaming are advanced security exercises that simulate targeted attacks on live systems based on real-world threats. These exercises aim to uncover technical vulnerabilities and assess how effectively an organization’s defense systems and teams respond to complex, real-time attacks.

In regulated sectors, especially financial services, TLPT is mandatory:

• DORA (Digital Operational Resilience Act): As of January 17, 2025, TLPT must be performed at least once every three years.
• TIBER-EU: A unified European framework that ensures the high-quality execution of threat-led testing.

TLPT is an intelligence-driven red teaming engagement in which scenarios are derived from threat intelligence and tailored to an organization’s risk profile. It tests the resilience of live systems under realistic sadversarial conditions.

• TLPT ≠ traditional penetration testing: While traditional penetration testing focuses on tools and vulnerabilities, TLPT maps real attacker behavior (Tactics, Techniques, and Procedures, or TTPs) against an organization’s critical business functions.
• TLPT ⊆ Red Teaming: Both involve live systems, but TLPT is more regulated and threat-intelligence based.

• Red Team: An external/independent expert team acting as the attacker, applying real-world TTPs.
• Blue Team: The organization’s defensive team that detects and responds to the attack—typically unaware of the exercise in advance.
• Control Team: The client-side coordination group that ensures business continuity and oversees the test execution.
• Rules of Engagement (RoE): A document outlining the scope, permitted actions, and restrictions for the test.
• Kill Chain: The structured lifecycle of an attack—reconnaissance, exploitation, command and control, lateral movement, and data exfiltration.

1. Preparation & Planning
   • Regulatory alignment and setup of Control Team
   • Definition of authorizations, permissions, and RoE
2. Threat Intelligence Phase
   • Selection of industry-specific TTPs
   • Use of internal or third-party threat intelligence services
3. Red Team Execution
   • Attack simulation in a live environment via technical, physical, and human vectors
   • Continuous coordination with the Control Team
4. Purple Teaming & Closure
   • Joint learning sessions between Red and Blue Teams (replay sessions)
   • Final reporting, remediation recommendations, and retesting

• DORA (effective January 17 2025): TLPT must be conducted at least every three years; scope includes business-critical systems, third parties, and regulatory oversight.
• TIBER-EU & National Variants: Aligned with DORA, it provide a harmonized structure for national TLPT programs (e.g., TIBER-DK).
• ART (Advanced Red Teaming): A modular TLPT methodology offering flexibility in scenario design and threat intelligence integration.

Key Benefits:

• Realistic simulation of advanced attack scenarios
• Regulatory compliance (DORA, TIBER)
• Improved detection and incident response capabilities
• Organizational learning and maturity development

Main Chalanges:

• Live system testing poses inherent business risk
• Requires high-level planning, coordination, and operational maturity
• Involves third-party collaboration (threat intelligence, red team)

• Independent Threat Intelligence: Ensure separation via an external threat intelligence (TI) provider or combine internal and external sources.
• Kill Chain-Based Scenarios: Cover all attack phases, from reconnaissance to exfiltration.
• Detailed RoE & Strong Control Team: Minimize operational risks and maintain oversight.
• Purple Teaming: Promote collaborative learning with internal defense teams.
• Regular Testing Cycle: Conduct full TLPT at least every three years, as well as annual penetration tests, and targeted retests post-remediation.