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Red Teaming
Simulating real-world attacks to test organisational resilience
Our red teaming simulates real-world attacks to test your organisation’s ability to detect and respond, helping strengthen your overall cyber security posture against advanced threats.
What is red teaming?
At Zensec, our red team services deliver an intelligence-led assessment of how effectively your organisation can detect, respond to, and contain real world attack scenarios. Going beyond traditional penetration testing, our red teaming engagements test people, processes, and technology under sustained, targeted attack. By simulating realistic cyber attacks from sophisticated threat actors, we uncover hidden vulnerabilities, assess response capabilities, and provide actionable intelligence to strengthen defences and protect critical assets.
Red team testing (Red teaming) is an advanced form of offensive security that emulates how real attackers operate over extended periods of time. Unlike penetration testing services, which typically focus on identifying individual vulnerabilities, a red team exercise evaluates how well your security controls, security team, and incident response procedures perform during a coordinated and targeted attack.
A red team assessment may combine cyber attacks, social engineering, physical access, and exploitation of technical weaknesses to simulate a real world threat attempting to access sensitive data or disrupt operations. The objective is not just to compromise systems, but to test detection and response capabilities and highlight gaps across the organisation.
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Why choose Zensec
Zensec’s skilled red team specialists deliver advanced expertise in offensive security, ethical hacking, and penetration testing. Our team has a strong track record of running red team engagements for complex organisations, including those working within highly regulated UK industries.
Realistic simulations of genuine cyber attack methods used by today’s threat actors
Engagements designed to align with UK regulatory requirements and board-level risk priorities
Clear insight into your organisation’s detection and response capabilities
Practical recommendations that support long-term resilience and continuous improvement
Seamless integration with wider services such as penetration testing, vulnerability management, and security assurance
Red teaming offers one of the most effective ways to evaluate how your organisation would respond during a real cyber incident. These exercises uncover weaknesses, challenge existing controls, and provide the intelligence needed to strengthen defences against sophisticated threats.
We are equipped to deal with an attack from any ransomware group.
Don’t hesitate to contact us if you are under attack from a ransomware group not listed above.
The importance of red teaming
Modern attackers do not follow predefined test cases. They adapt, persist, and exploit both technical and human weaknesses. While traditional security testing and penetration testing focuses on prevention, red teaming tests how your organisation performs once an attacker is already active.
A well-executed red team engagement helps organisations understand how real attackers could bypass existing security controls, exploit security weaknesses, and move laterally to compromise critical assets.
Red teaming helps you:
Assess your current security posture and overall resilience
Identify security risks that traditional testing may miss
Evaluate blue team effectiveness and threat detection capabilities
Test incident response plans under realistic pressure
Validate that security investment and tooling deliver value
Provide assurance to executive and management teams
Key features
Zensec delivers intelligence led testing that reflects genuine attacker behaviour and real world attack scenarios, tailored to your organisation, industry, and threat landscape.
Planning & threat intelligence
We work closely with key stakeholders, management teams, and security leadership to define objectives, scope, and acceptable risk. Using threat intelligence, we design realistic attack scenarios aligned with known attack vectors and adversary tactics.
Initial compromise & attack execution
Our offensive security experts attempt to gain access through multiple vectors, including:
Launch phishing attacks and create fake email communications
Exploit weak employee passwords and attempt to crack weak employee passwords
Abuse exposed systems and applications
Leverage physical security weaknesses and physical access (where in scope)
Post-compromise activity
Once access is achieved, our red team simulates real attacker behaviour, including privilege escalation, lateral movement, persistence, and attempts to access sensitive data or compromise critical assets.
Detection, response & containment
Throughout the engagement, we assess your organisation’s detection and response, incident response, and coordination between technical and operational teams. This provides clear insight into response capabilities and operational maturity.
Reporting & post-engagement support
At the conclusion of the engagement, Zensec provides a detailed post engagement report and detailed report outlining findings, including:
Attack paths used during the engagement
Security risks identified and root causes
Effectiveness of detection and response
Gaps in existing security controls
Tactical and strategic actionable intelligence
We also provide important post operation support, helping security and leadership teams address risks, improve processes, and ensure future investments deliver measurable improvements. Zensec’s expert pen testing team and ethical hackers bring deep experience across red team engagements, penetration testing, and advanced cyber security assessments.
Highly recommended reasons to work with Zensec include:
Realistic simulation of real world threats
Strong alignment with executive-level risk and decision-making
Clear measurement of organisation’s defences
Support for long-term security improvement
Integration with wider security services and the software development lifecycle
Red teaming services provide the most realistic way to understand how your organisation would perform during a genuine attack. They offer clarity on overall security posture, highlight where controls fail, and deliver insight that helps organisations move from reactive to resilient.
Explore Our Penetration Testing Services
Comprehensive offensive security assessments tailored to your organisation’s threat landscape.
Uncover vulnerabilities in your web apps before attackers do.
Secure your iOS and Android applications against real-world threats.
Test your perimeter defences from an outsider’s perspective.
Identify risks an insider or compromised device could exploit.
Full-scope adversary simulation to stress-test your entire security posture
Simulate a compromised network to measure detection and response.
Collaborative red and blue team exercises to sharpen your defences.
Evaluate your people’s resilience against phishing and manipulation.
Discover what attackers can learn about you from public sources.
We can help
Frequently asked questions
Key information when you’re under pressure.
Red teaming goes beyond penetration testing by simulating full real world attack scenarios rather than testing individual vulnerabilities. While traditional penetration testing focuses on identifying specific security flaws, red team engagements assess an organisation’s detection and response capabilities, testing people, processes, and technology together to measure the true security posture.
A red team exercise simulates the tactics used by sophisticated threat actors, including social engineering, phishing, credential abuse, privilege escalation, lateral movement, and, where agreed, physical access attempts. These real world attack scenarios are designed to mirror genuine cyber threats and evaluate how well security teams detect and respond to targeted attacks.
A successful red team assessment involves collaboration with executive and management teams, key stakeholders, and the security team. While the red team operates covertly, leadership involvement ensures objectives align with business risk, critical assets, and incident response priorities, providing meaningful insight into the organisation’s overall security posture.
Following a red team engagement, Zensec delivers a detailed post engagement report outlining attack paths, vulnerabilities identified, and gaps in existing security controls. The report provides actionable intelligence to help organisations address risks, improve incident response procedures, and strengthen long-term defensive capabilities.
Dealing with a ransomware attack?
Our ransomware recovery service can help
Our expert team works quickly to contain the breach, recover your data, and restore your systems to full operation. We’ll guide you through every step of the recovery process and help strengthen your defences to prevent future attacks. Regain control with Zensec - trusted support when it matters most.