David Pybus
Director of Cyber Security @Deloitte
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WORK HISTORY
Director of Cyber Security @Deloitte
Leading senior cyber security engagements across private and public sector clients, with a focus on transformation, incident response, and managed security services.• Served as Interim CISO to a global organisation following a major ransomware incident, leading post-incident transformation and remediating security risk across the estate.• Executive coordination of a triple-extortion ransomware incident impacting customer-facing services, stabilising executive decision-making and supporting service recovery.• Delivery-level budget accountability for significant engagements.• Led SOC implementations for multiple international clients, managing transition to service including log onboarding, threat mapping, and initial configuration.• Delivered Secure by Design assurance for UK public sector clients, embedding proportionate controls to protect citizen and staff data on cross-department shared platforms.• Regular presenter to Boards and Audit Committees at FTSE 100 and FTSE 250 organisations, advising on cyber risk, threat landscape, and security uplift priorities.• Led multiple cyber security assessments against ISO 27001 and NIST CSF frameworks.
EDUCATION
The Open University
Bachelor of Laws (LLB), English Law
Durham University
MSci, Physics
Royal Holloway, University of London
MSc, Information Security
ABOUT DAVID PYBUS
Senior cyber security executive with over 25 years\' experience leading cyber security strategy, risk, and resilience across large and complex organisations. Currently Director of Cyber Security at Deloitte, where I lead high-value engagements across the private and public sectors.I routinely work at board and executive level, advising Audit Committees and Boards at FTSE 100 and FTSE 250 organisations, providing clear-sighted guidance on cyber risk, threat landscape, and security maturity. I have served as Interim CISO for organisations navigating major incidents and complex transformation programmes.My experience spans the full breadth of enterprise cyber security: incident response leadership, Secure by Design assurance across large public sector programmes, SOC design and implementation, managed security services, and enterprise GRC.Prior to Deloitte, I was a Director at EY and spent nearly a decade as Head of Information Security GRC at Diageo plc, where I established and led the global CSIRT and built the enterprise-wide security governance programme.CISSP | FBCS | MInstISP | MSc Information Security (Royal Holloway)
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