Grey Swans Cyber Consulting

Anticipate the Grey Swans — build true cyber resilience.

In a world where cyber threats evolve faster than defences, resilience demands seasoned judgement, not slogans.

Grey Swans provides independent, board-level cybersecurity advice grounded in decades of real-world experience — helping organisations prepare for the rare but foreseeable events that can redefine their future.

We translate complexity into clarity, align risk with strategy, and build lasting confidence in your resilience.

Be ready before the next Grey Swan appears.

Contact us via LinkedIn https://www.linkedin.com/in/prvlissidis/

Guided by Experience. Built for Resilience. Prepared for the Unexpected.

Grey Swans Cyber Consulting

Real-world cyber resilience, guided by experience that’s been there before.

In a world where cyber threats evolve faster than defences, resilience demands seasoned judgement, not slogans.

Grey Swans provides independent, board-level cybersecurity advice grounded in decades of real-world experience — helping organisations prepare for the rare but foreseeable events that can redefine their future.

Why Expertise Matters More Than Ever

In today’s threat landscape, cyber risk is no longer a technical issue — it’s a business-critical concern. Attackers move faster, supply chains are increasingly complex, and board accountability is sharper than ever. Yet too many organisations still rely on box-ticking compliance or short-term technical fixes.

At Grey Swans, we believe cyber resilience demands seasoned judgement — not theory. With decades of experience at the frontline of cybersecurity, we’ve seen how threats evolve, how incidents unfold, and how real resilience is built: through clarity, governance, and tested defences.

The Grey Swan Approach

Our name reflects the rare but foreseeable events that can transform a business overnight — the “grey swans” that are predictable in hindsight but devastating if ignored. We help you prepare for them before they strike.

Our approach is pragmatic, executive-level, and evidence-based. We translate complex cyber risks into business impact, helping leaders make informed decisions about where to invest, how to govern, and when to act.

Our advisory work focuses on:

  • Cyber Resilience Reviews: holistic assessments aligned with NIST CSF, ISO 27001, and C-Suite risk priorities.
  • Board, Executive and Staff Briefings: demystifying cyber risk, articulating strategy, and ensuring accountability.
  • Incident Readiness & Response Planning: preparing leadership teams for the moment that truly matters.
  • M&A Investment Due Diligence: identifying unseen cyber liabilities and resilience gaps.
  • Trusted Advisor Retainer: ongoing strategic counsel to sustain assurance, maturity, and confidence.

Why Clients Choose Grey Swans:

  • Cyber Resilience Seasoned Expertise: Led by Paul Vlissidis, one of the UK’s most experienced cybersecurity professionals, who has advised boards, government agencies, and FTSE-listed organisations for over 25 years.
  • Board-Level Communication: We speak the language of risk, governance, and business value — not just technology.
  • Independence & Integrity: Unbiased, vendor-neutral guidance grounded in real-world outcomes, not sales targets.
  • Actionable Insight: Our outputs are concise, risk-prioritised, and directly aligned with your strategic objectives.
  • Proven Resilience: From high-assurance environments to fast-moving private equity portfolios, we’ve helped organisations anticipate and withstand the unexpected.

Beyond Compliance — Towards Confidence

Cybersecurity frameworks are important, but resilience is about readiness, culture, and leadership. We help you go beyond checklists to build lasting assurance — where the board knows what matters most, teams know how to respond, and stakeholders trust your ability to endure disruption.

Get in Touch

If you want your organisation to be prepared for the next Grey Swan — not just survive it — let’s start a conversation info@greyswans.io

Advice and Training from a real expert in cyber resilience

An accomplished presenter Paul offers entertaining and effective awareness training workshops for all. Having led the cyber team on the popular Channel 4 show Hunted, Paul has (ethically) hacked hundreds of people over the first seven years of the show. He is an authority on personal cyber resilience and has several publications on the subject. Paul has led major incident responses for several nationally significant cyber attacks as well as many others.