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Philip Grindell — CEO and Founder · Defuse · London Area, United Kingdom.
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About
I have spent my working life learning how people come to harm — three decades in UK law enforcement, much of it at Scotland Yard, and now advising prominent families. The most valuable lesson from all of it is a hopeful one: serious harm rarely arrives unannounced, and it is far easier to prevent than to repair. That is why my work starts earlier than most people expect. Not with a threat, but with exposure. A surprising amount can be found about a prominent family in minutes — a home address, a child's school, travel patterns, business connections — with no specialist knowledge and nothing unlawful. Just someone looking. I help prominent individuals, family offices and their advisers protect their privacy and feel safer. The principle is simple: be hard to find, and even harder to target. Much of my retained work is preventative. We find the personal information available about a family, remove what can be removed, and keep watch on what remains. We put quiet, sensible arrangements in place — a verified way to confirm an unusual instruction, an agreed understanding of who decides in a difficult moment — so a family is steady long before anything tests it. And when something does surface — someone who has been around too long, communications that started warmly and now feel insistent, a former employee who will not accept that a relationship has ended — my role is judgement. I assess behaviour and intent so clients can make proportionate decisions grounded in evidence rather than fear or assumption. I do not provide guarding. I do not create unnecessary alarm. I do not escalate without evidence. What clients get is clear judgement they can act on. Following the murder of Jo Cox MP, I set up and led The Parliamentary Liaison and Investigation Team — the unit that went on to identify and stop a planned terrorist attack against another MP. I was trained by Dr Robert Fein, co-author of the US Secret Service study into targeted violence, and I am the author of 'Personal Threat Management: The practitioner's guide to keeping clients safer' a Business Book Awards finalist. For the advisers who refer clients to us: we work around your existing structure, and your client remains your client. If you are managing something sensitive, or simply want to know how exposed a family is today, contact me directly. All conversations are confidential. 📩 [contact omitted]
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Experience
Founder Defuse Global - Privacy and Personal Threat AdvisorCurrent
Defuse Global · Greater London
Nov 2019 – Present
I help family offices, private clients and senior leaders, and the advisers who work with them, feel safer when behavioural risk is close, trusted and difficult to interpret. My work focuses on insider risk and threats from those in a position of trust, fixated individuals and unwanted attention, escalating grievance behaviour, reputational and psychological harm, and complex situations where legal or traditional security responses risk overreaction. I assess behaviour, intent and trajectory to determine whether a situation represents a developing threat, a contained issue, or a concern amplified by uncertainty. My approach is grounded in operational threat assessment, including establishing the UK Parliament's threat team after the murder of Jo Cox MP, and earlier work as Counter Terrorism Security Coordinator for the Royal Family and Government ministers. Recent matters have included preventing escalation in cases of hostile fixation against senior executives, assessing insider behaviour within family office environments before reputational damage occurred, advising boards on proportionate response to targeted harassment, and supporting legal teams with behavioural analysis to inform strategy. Clients engage me for clarity, discretion and proportionate judgement — not theatre. Confidential advisory work, UK and internationally. www.defuseglobal.com
Mayfair Collective Ambassador
Mayfair Collective · London, England
Jul 2020 – Sep 2026
Member of an invitation-only network of advisers serving private clients and family offices. Supporting trusted referral relationships across legal, security, risk and advisory disciplines.
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