Red Team Operations

A red team exercise is a structured adversarial simulation in which a team of offensive security specialists (the red team) attempts to achieve a specific objective (for example, accessing the CEO's email, reaching a payment system, or exfiltrating a customer database) using realistic threat actor TTPs without the defending security team's knowledge. A red team exercise differs from penetration testing in that it tests the organisation's detection and response capability, not just its technical vulnerabilities. Typical red team exercises run for 4-8 weeks and include reconnaissance, initial access, lateral movement, objective achievement, and a purple team debrief. At Precursor Security, CREST-accredited red team exercises start from £15,000.

Purple teaming in cyber security is the collaborative practice of combining the red team (attackers) and blue team (defenders) in a structured debrief to improve detection and response capability. After a red team exercise, the purple team debrief involves replaying each attack stage with SOC analysts and detection engineers, identifying which MITRE ATT&CK techniques were not detected, reviewing why specific EDR and SIEM alerts failed to fire, and producing detection improvement recommendations and MITRE ATT&CK coverage heatmaps. Purple teaming transforms a red team engagement from a point-in-time finding into a measurable improvement in your SOC's detection capability. Purple team debriefs typically improve SOC detection coverage from under 20% to above 70% of tested MITRE ATT&CK techniques. Precursor Security includes a full purple team debrief in every red team operation.

CBEST is the Bank of England's intelligence-led cyber security testing framework, mandatory for systemically important UK financial institutions. Precursor Security aligns its red team methodology with the CBEST framework requirements, including threat intelligence integration, control debrief, and regulatory reporting format. Our CREST-accredited team can deliver intelligence-led engagements that follow CBEST methodology for UK financial services institutions. Engagements aligned with the CBEST framework are typically scoped at £40,000-£60,000 depending on institution size and asset complexity, with an end-to-end timeline of 6-12 months including the threat intelligence phase. Contact us to discuss your requirements.

Red team penetration testing combines penetration testing techniques with red team objectives: stealth, extended dwell time, and a specific operational goal rather than a comprehensive vulnerability inventory. While a standard penetration test identifies as many vulnerabilities as possible within a defined scope, red team penetration testing uses those same techniques in service of a realistic attack scenario, asking whether an adversary could reach Crown Jewel X, not just whether vulnerabilities exist. Engagements typically run 4-12 weeks and include custom malware development, multi-vector attack paths, and a purple team debrief.

Red team services typically range from £15,000 to £50,000+ depending on scope, duration, and objective complexity. A standard 2-4 week red team exercise for a mid-sized organisation (500-2,000 employees) averages £25,000, covering initial access, internal reconnaissance, lateral movement, and objective achievement with full debrief. Extended red team assessments (4-6 weeks) with advanced adversary emulation, mimicking APT groups such as Lazarus, APT29, or FIN7, typically cost £35,000-£50,000+. Financial sector engagements aligned with CBEST methodology typically cost £40,000-£60,000. We provide fixed-price quotes after a scoping call.

Red teaming in cyber security is an objective-based adversarial simulation that tests whether your SOC and incident response function can detect and stop a sophisticated, multi-stage attack, not just whether vulnerabilities exist. Unlike penetration testing, a red team exercise emulates the full kill chain of a specific threat actor (APT29, Lazarus Group, FIN7) using MITRE ATT&CK-aligned TTPs, with a defined objective and an extended timeline designed to replicate realistic attacker dwell time.

A penetration test finds as many vulnerabilities as possible within a defined scope and time (typically 5-10 days), providing a comprehensive vulnerability inventory. A red team operation tests your defence capabilities (people, process, and technology) against a focused, realistic attack scenario with a specific objective over weeks or months. Pentesting is noisy and comprehensive; red teaming is stealthy and objective-focused. Pentesting validates security controls; red teaming validates detection and response capabilities.

Professional red team operations are designed to be safe despite their realistic nature. We operate under strict Rules of Engagement (RoE) defining off-limits systems, acceptable attack methods, and abort conditions. All activities are logged and reversible. We do not destroy data or permanently modify systems. We prioritise business continuity with immediate abort codes if critical systems are at risk. Testing is coordinated with designated emergency contacts (not SOC, as they are being tested) who can halt operations if necessary. We use non-destructive exploitation techniques wherever possible. In 10+ years of red teaming, we have never caused business disruption when following agreed RoE.

Red team operations require balancing realism with ethics. Executive leadership and designated contacts know testing is occurring (for abort codes and legal protection), but SOC analysts and employees do not (to test realistic detection). We operate under signed legal authorisation and explicit RoE preventing unethical actions. Social engineering is targeted and limited. We target 10-20 individuals necessary for objective achievement, not the entire organisation. Physical intrusion follows strict ethical guidelines. Post-engagement, all affected employees receive security awareness training explaining what happened and how to recognise similar attacks.

Red team exercises typically last 4-6 weeks minimum for realistic adversary simulation. Real attackers do not rush, and neither do we. This extended timeframe allows for: realistic reconnaissance (OSINT gathering over days/weeks), low and slow command and control beaconing (avoiding detection), patient social engineering campaigns, thorough lateral movement, and dwell time simulation. Short engagements (1-2 weeks) can test specific scenarios but do not replicate realistic APT behaviour. Extended engagements (8-12 weeks) are used for engagements aligned with CBEST or TIBER-EU methodology, or complex financial sector environments.

Yes. Red teaming is most valuable for organisations with established security programs. Prerequisites include: regular penetration testing completed (basic vulnerabilities already identified and remediated), 24/7 SOC or security monitoring capability, an incident response plan and team in place, and basic security controls implemented (EDR, SIEM, network segmentation). If you are still addressing fundamental vulnerabilities or lack security monitoring, start with penetration testing and vulnerability assessments. Red teaming is the advanced test for mature organisations that want to validate their detection and response capabilities against realistic threats.

Precursor Security aligns red team operations with industry frameworks: MITRE ATT&CK (tactics and techniques taxonomy for adversary emulation), CBEST (our methodology can be aligned with Bank of England intelligence-led testing requirements), TIBER-EU (our delivery follows European Central Bank threat-based testing methodology), and NIST SP 800-115 (technical penetration testing guidance). We emulate specific threat actor groups relevant to your industry: FIN7 for retail, Lazarus for financial services, APT29 for government, using their documented TTPs from threat intelligence sources.