As we mark our 25th anniversary, Dionach by Nomios continues to lead the way in providing advanced cybersecurity solutions that empower businesses to defend against evolving digital threats. With decades of experience in penetration testing, compliance, and red teaming, we ensure that our clients are equipped to secure their digital environments effectively. Watch our new branding video to discover how we continue to help businesses secure their operations with our trusted cybersecurity solutions. Thank you to all our clients and employees who have supported us throughout this incredible journey. Here’s to the next 25 years of securing your digital future. #CyberSecurity #PenetrationTesting #RedTeam #Compliance #DionachbyNomios
About us
Dionach by Nomios is an independent information security consultancy with over 25 years of experience. We are ISO 27001, PCI QSA, CESG CHECK, and CREST certified, delivering trusted expertise across a range of security disciplines, including Penetration Testing, Red Team Assessments, PCI DSS and ISO 27001 Auditing and Consultancy, and Incident Response. With new cyber threats and vulnerabilities emerging every day, our dedicated Research and Development team ensures we stay ahead—actively researching both known and emerging risks. We collaborate with major vendors and our clients to share key discoveries and strengthen defences. At Dionach by Nomios, we believe that the best way to manage evolving cyber risks is through a robust Information Security Management System, supported by regular, high-quality security testing as a core part of any strong security strategy.
- Website
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https://xmrrwallet.com/cmx.pwww.dionach.com
External link for Dionach by Nomios
- Industry
- IT Services and IT Consulting
- Company size
- 51-200 employees
- Headquarters
- Oxford
- Type
- Privately Held
- Founded
- 1999
- Specialties
- Application and Infrastructure Penetration Testing, IT Security Audits, ISO 27001 Audits and Consultancy, PCI DSS, Gambling Commission Security Audits, Cyber Security Incident Response, Forensic Investigations, Virtual CISO, Cloud Security Assessment, and Red Team Assessment
Locations
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Primary
Unipart House
Garsington
Oxford, OX4 2PG, GB
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Hope Street
4th Floor 94
Glasgow, Scotland G2 6PH, GB
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4235 Hillsboro Pike
Nashville, Tennessee 37215, US
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Stadhouderslaan 900
Zoeterwoude, South Holland 2382 BL, NL
Employees at Dionach by Nomios
Updates
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ISO 42001 is the world’s first standard dedicated to AI Management Systems, helping organisations build AI systems that are ethical, transparent, and secure. At Dionach, we support businesses in aligning with ISO 42001 by: ✔️ Establishing robust AI policies and procedures ✔️ Managing AI risks and compliance ✔️ Ensuring accountability and transparency in AI development Whether you're building AI tools or integrating them into operations, ISO 42001 is key to staying compliant and trusted. 🔗 Find out how we can help: https://xmrrwallet.com/cmx.pbit.ly/47ic351 #ISO42001 #AIgovernance #AICompliance #ResponsibleAI #EthicalAI #CyberSecurity #DionachbyNomios
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We're excited to welcome Andrew Paterson to the team as our new Junior Cyber Solutions Consultant! 🎉 Andrew recently graduated from Glasgow Caledonian University, where he studied Cyber Security and Networks. He’s passionate about all things cyber and ready to kick off his journey with us. Great to have you onboard, Andrew. We’re looking forward to working with you! 🚀 #WelcomeToTheTeam #CyberSecurity #Dionachcareer #LifeAtDionach
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AI is proving to be a double edged sword yet again. Read below to see how AI is being utilised for vishing/phishing attacks and what you can do about it. Plus side, I have been personally using AI to never have to think about the weekly food shop or the dreaded 'what am I cooking for dinner tonight?' questions, so it's not all terrible. Down side, I have had to ban my non-tech-savvy mother from all socials after she sent that viral AI video of bunnies on a trampoline to me 5 times in a row.
Would you trust an email that sounds exactly like your CEO? What if it came with a video or even a phone call? Welcome to the new era of cyber threats. AI voice cloning and deepfakes are turning phishing into hyper-personalised, believable attacks. 📈 Vishing attacks are up 1,600% in 2025. 🎭 Deepfake fraud now happens every 5 minutes. 💸 The average data breach costs £3.8M+. Identifying a suspicious connection is no longer enough. The real defence? Your people. 🔒 Learn how to build human-centric cyber resilience and protect your organisation against AI-enabled deception: 👉 https://xmrrwallet.com/cmx.pbit.ly/4l9unkj #CyberSecurity #AIThreats #VoiceCloning #Deepfakes #Phishing #HumanFirewall #Dionach #CyberResilience
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Would you trust an email that sounds exactly like your CEO? What if it came with a video or even a phone call? Welcome to the new era of cyber threats. AI voice cloning and deepfakes are turning phishing into hyper-personalised, believable attacks. 📈 Vishing attacks are up 1,600% in 2025. 🎭 Deepfake fraud now happens every 5 minutes. 💸 The average data breach costs £3.8M+. Identifying a suspicious connection is no longer enough. The real defence? Your people. 🔒 Learn how to build human-centric cyber resilience and protect your organisation against AI-enabled deception: 👉 https://xmrrwallet.com/cmx.pbit.ly/4l9unkj #CyberSecurity #AIThreats #VoiceCloning #Deepfakes #Phishing #HumanFirewall #Dionach #CyberResilience
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You can invest in the best firewalls, EDR, and MFA—but a single click on a phishing link can undo it all. Human error remains one of the top causes of data breaches. Our social engineering assessments and awareness programs are designed to identify real vulnerabilities in your workforce before attackers do. We simulate real-world phishing, vishing, and physical intrusions to test how your team responds. 🔍 Why it matters: • 90% of breaches start with human error • Your employees are your first line of defence • Awareness training without real testing = limited impact Let’s build a security culture, not just a policy. 🔗 Learn more: https://xmrrwallet.com/cmx.pbit.ly/46tyi7U #SecurityAwareness #SocialEngineering #HumanFirewall #Dionach
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Think your defences are strong? So did many organisations until they faced a real attack. Traditional penetration tests are essential, but they often follow a known playbook. Adversary Simulation takes it a step further. We simulate real-world attacks tailored to your environment mirroring tactics used by sophisticated threat actors. From phishing entry points to lateral movement and privilege escalation, we test how your people, processes, and technology respond under pressure. 💡 What you gain: • Insight into how an attacker would exploit weaknesses • A realistic view of your detection and response capabilities • A clear roadmap to strengthen your security posture 🛡️ Want to go beyond checklists and build true resilience? Learn more: https://xmrrwallet.com/cmx.pbit.ly/471zKyh #RedTeam #AdversarySimulation #PenetrationTesting #CyberSecurityTesting #DionachbyNomios
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AI is changing the game but it’s also changing the risks. If your organisation is adopting or developing AI tools, it’s crucial to think about security, governance, and compliance from day one. At Dionach, we help you: ✅ Understand and manage AI-related risks ✅ Build a governance framework that actually works ✅ Test your models for vulnerabilities ✅ Prepare for AI-specific security incidents Whether you’re using AI in-house or relying on third-party tools, our team can support you with practical guidance and technical insight. 🧠 Learn more about our AI cyber security services: 👉 https://xmrrwallet.com/cmx.pbit.ly/46WEzZH #CyberSecurity #AI #AIGovernance #AISecurity #RiskManagement #DionachbyNomios
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💛 Support Dougie’s 1,000-Mile Ride for Brain Tumour Research 💛 Our colleague Dougie Fisher was diagnosed with a brain tumour in 2020. After enduring surgery, chemo, and radiotherapy, he’s now raising awareness and funds for Brain Tumour Research - a cause close to his heart. To support the fight for better treatments, he’s cycling 1,000 miles from Land’s End to John O’Groats. He started on 18 July and aims to finish on 2 August, currently making his way through the UK! 🚴♂️ Donate here if you can: 🔗 https://xmrrwallet.com/cmx.plnkd.in/dYB_rjXQ 📲 Follow his journey on Instagram: @lifecycleofafisher Even a share makes a difference. Let’s cheer him on! 💪 #BrainTumourResearch #LEJOG #CyclingForACure #SupportDougie
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🎉 Welcome to the team, Altay Ordukaya! We’re excited to have Altay join Dionach as a Junior Cyber Security Consultant! With HTB CPTS certification, and experience as a HackerOne researcher, Altay brings a real passion for ethical hacking and vulnerability research. He’ll be supporting our security testing and threat assessments. Great to have you on board, Altay! 👏 #DionachbyNomios #Nomios #CyberSecurityCareers
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