Certified Red Team Experts - CREST Approved Global Provider
Go beyond vulnerability scanning. Our red teaming services put your entire security posture: people, processes and technology: under the same pressure as a real-world advanced persistent threat. Led by CREST-certified ethical hackers, every engagement is scoped to your specific business objectives and attack surface.
- CREST-certified red team operators
- Intelligence-led adversary simulation using MITRE ATT&CK
- Full kill chain testing: from initial access to data exfiltration
Trusted by organisations across regulated industries including finance, healthcare, SaaS, and critical infrastructure.
What is Red Teaming?
Red teaming is a full-scope, adversarial security assessment where a team of certified ethical hackers simulates a real-world cyber attack against your organisation: without your internal security team being told in advance.
Unlike penetration testing, which focuses on cataloguing technical vulnerabilities within a defined scope, a red team engagement is goal-oriented. Our red team operators are tasked with achieving a specific objective: accessing sensitive data, compromising a privileged account, disrupting critical systems: using whatever techniques a real attacker would employ.
This includes network intrusion, social engineering, physical access attempts, spear phishing, and lateral movement across your infrastructure. The result is a realistic, evidence-based picture of how your organisation would hold up against a sophisticated, targeted attack.
When Do You Need Red Teaming?
Most mature organisations already have security controls in place: firewalls, endpoint protection, a SOC, regular penetration tests. Red teaming asks a harder question: do those controls actually work when a determined adversary targets your business specifically?
You may need red teaming services if you:
- Have invested significantly in your cyber security programme and want to validate its real-world effectiveness
- Need to meet the requirements of CBEST, TIBER-EU, DORA, or another intelligence-led testing framework
- Have experienced a security incident and want to test whether the root cause has been fully addressed
- Operate in a regulated industry where board-level assurance on cyber resilience is required
- Want to understand how an advanced persistent threat (APT) actor would approach your organisation
- Need to stress-test your detection and response capabilities under realistic attack conditions
Whatever the driver, the goal is the same: to understand exactly what a real attacker could do, before they do it.
A Trusted Approach To Penetration Testing
Our Red Teaming Methodology
Every OmniCyber red team engagement follows a structured, intelligence-led methodology aligned with the MITRE ATT&CK framework. Our CREST-certified operators combine automated tooling with expert manual techniques to emulate the tactics of the threat actors most relevant to your sector and business profile.
- Scoping and Threat Intelligence: We define your business objectives, identify relevant threat actor profiles, and tailor the engagement to reflect realistic attack scenarios for your industry.
- Initial Access: Our red team attempts to gain a foothold using techniques including spear phishing, credential stuffing, exploiting internet-facing services, and physical access attempts where in scope.
- Persistence and Lateral Movement: Once inside, operators work to maintain access, escalate privileges, and move laterally through your environment: exactly as an APT would.
- Objective Achievement: The engagement concludes when the red team achieves the agreed objective: or when the blue team successfully detects and contains the intrusion.
- Purple Team Debrief: A structured debrief brings red and blue team together to review the full attack chain, identify detection gaps, and agree remediation priorities.
- Risk-Based Reporting: Findings are presented in a structured report covering the full attack narrative, evidence of access, detection gaps, and prioritised remediation recommendations for both technical and executive audiences.
A Comprehensive Approach
The MITRE ATT&CK framework covers the full attack lifecycle, from initial reconnaissance through to actions on objectives, mapping directly to the phases of the Cyber Kill Chain.
Our red team engagements are structured around this framework, ensuring every tactic a real-world threat actor might use is accounted for in your assessment.
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Our Red Teaming Services
OmniCyber delivers a full range of red team security testing services, designed to simulate the complete attack lifecycle across your people, processes and technology.
Our CREST-certified red team operators conduct manual, intelligence-led engagements tailored to your environment and risk profile.
Network Intrusion Red Teaming
Simulates a real-world network attack from the perspective of an external or insider threat, testing your defences across firewalls, endpoints, servers, and access controls.
Social Engineering Red Teaming
Tests the human layer of your security programme through targeted spear phishing campaigns, vishing (voice phishing), and pretexting scenarios designed to mirror real APT tactics.
Physical Red Teaming
Assesses physical security controls including building access, tailgating resilience, and on-site reconnaissance to determine whether physical access can lead to digital compromise.
Web Application Red Teaming
Goes beyond a standard web application pen test to pursue specific objectives: account takeover, data exfiltration, privilege escalation: using real attacker methodologies.
Assumed Breach Red Teaming
Starts from the position that an attacker already has a foothold on your network, focusing on lateral movement, privilege escalation, and how far an adversary can progress undetected.
Purple Teaming
A collaborative exercise that brings your red and blue teams together to test and improve detection capabilities in real time, mapping attacker techniques directly against your SIEM and SOC visibility.
CBEST Red Teaming
Intelligence-led red team assessments aligned with the Bank of England's CBEST framework, designed for financial services organisations requiring board-level assurance on cyber resilience.
TIBER-EU / DORA Red Teaming
Supports organisations preparing for or maintaining compliance with TIBER-EU and the Digital Operational Resilience Act (DORA), including threat intelligence-led adversary simulation.
Red Teaming vs Penetration Testing
Red teaming and penetration testing both involve certified ethical hackers attempting to compromise your systems: but they serve very different purposes. Understanding the difference will help you choose the right assessment for your security maturity and business objectives.
| Feature | Red Teaming | Penetration Testing |
|---|---|---|
| Objective | Simulate a full APT attack chain to test people, process and technology | Identify and exploit specific technical vulnerabilities |
| Scope | Unrestricted: targets defined by business objective | Predefined systems and IP ranges |
| Duration | Weeks to months | Days to weeks |
| Awareness | Blue team unaware (covert) | Usually agreed in advance |
| Methodology | MITRE ATT&CK, custom TTPs, adversary emulation | OWASP, PTES, CREST standards |
| Output | Executive narrative + technical findings + blue team assessment | Vulnerability list with CVSS scores and remediation guidance |
| Compliance | CBEST, TIBER-EU, DORA | ISO 27001, Cyber Essentials, PCI DSS |
In short: penetration testing tells you what vulnerabilities exist. Red teaming tells you what a real attacker could actually achieve: and whether your team would catch them
Red Teaming for Compliance
A growing number of regulatory frameworks now require or strongly recommend intelligence-led, adversary simulation as part of an organisation’s security assurance programme. OmniCyber supports organisations across regulated industries in meeting these requirements through structured, evidenced red team engagements.
This includes:
- CBEST: Bank of England intelligence-led testing framework for financial services firms
- TIBER-EU: European framework for threat intelligence-based ethical red teaming
- DORA (Digital Operational Resilience Act): mandated testing for EU financial entities
- ISO 27001: red teaming as part of ongoing security assurance and control validation
- PCI DSS: targeted red team testing to support cardholder data environment assurance
- NHS DSPT and HIPAA: healthcare sector security validation
Our CREST-certified red teaming provides the independent, expert-led assessment and structured reporting needed to satisfy both internal governance requirements and external regulatory scrutiny.
Red Teaming for Multiple Industries
OmniCyber delivers red team engagements across a wide range of sectors. Our operators understand the specific threat landscapes, regulatory pressures, and security maturity challenges that differ across industries.
This includes:
- Clear evidence of exploitable vulnerabilities
- How attackers could gain and escalate access
- What systems or data would be exposed
- Which controls fail under pressure
- What to fix first, prioritised by risk
- Clear reporting for technical and non-technical stakeholders
These insights are delivered in a structured report that places vulnerabilities in context, allowing your organisation to prioritise remediation and make informed security decisions.
What Our Clients Say About Our Services
Organisations across multiple industries trust OmniCyber to deliver professional penetration testing and clear security insights.
“What stands out most is the feedback I hear after introducing others to OmniCyber. They consistently say the team are the best penetration testers they have worked with because they work with you, not just against your systems.”
Global Travel Company
Head of Security
“Your report is the most detailed and practical we have reviewed. The level of clarity and prioritisation made it easy to understand what needed attention.”
Healthcare Industry
DevOps Manager
“The work and interactions (with Louie Augarde in particular) were so impressive we wouldn’t even consider tendering elsewhere at this point.”
UK Registered Charity
IT Infrastructure Manager