Enterprise Security for Family Offices
Boutique, concierge cybersecurity dedicated to safeguarding family offices
GDB Security provides personalized advisory services built from deep audits of your IT infrastructure, helping you navigate the maze of modern cybersecurity to make smart, strategic investments that meaningfully protect your digital privacy and preserve your family legacy.
From hardening your digital infrastructure and safeguarding personal data to rapidly recovering from security incidents, we leverage enterprise-grade tools and techniques to equip family offices with best-in-class defenses.
Our Impact
3.6B
Daily active users of major messaging apps secured with novel cryptographic technology
10%
of US equity trades protected as CISO
95%
of internet commerce secured with Certificate Transparency
30
Fortune 100 CISOs brought together to produce Executive Order 13800
Cybersecurity for Family Offices
Family offices are exposed to the same cybersecurity threats targeting Fortune 500 companies, but most lack the required defenses. 57% of family offices in North America have experienced a cyberattack in the past two years, with half suffering three or more attacks. As a result, cybersecurity has now become a top concern for HNW families.
Cyberattacks risk financial loss, but they also compromise a family's sense of privacy. Family communications, financial records, and other sensitive details can get exposed. Breaches also erode hard-earned reputations with advisors, partners, and friends when they spread to others in your network.
Family offices don't need massive budgets or complex systems to protect themselves. They need high-ROI cybersecurity investments that reflect what actually works for protecting organizations like yours, and a trusted partner to guide them each step of the way.
Gary Belvin, Founder
Gary has worked in cybersecurity where the stakes are highest—in the intelligence community at the National Security Agency, securing AI trading algorithms managing over 10% of daily US equity trading as a fintech CISO, and now advancing AI security at Databricks.
His privacy innovations power the encryption inside WhatsApp, Signal, and iMessage, securing billions of users worldwide.
As a former Chief Information Security Officer, Gary helped navigate a maze of regulations and build trust with regulators across eight countries, including FINRA and the SEC. He built a coalition of 30 Fortune 100 CISOs that shaped Executive Order 13800 on strengthening America's cyber defenses.
As Principal of GDB Security, Gary brings this enterprise-grade expertise to family offices, translating complex security challenges into strategic guidance that protects your wealth, privacy, and legacy—without adding operational complexity.
Enterprise Grade
We draw from proven expertise across the intelligence community, big tech innovation, and financial services—the same caliber of security that manages billions in daily trading. Deep knowledge of the cybersecurity ecosystem means you get only the most effective partners and solutions, not whatever a vendor is pushing.
Custom
Based on deep security expertise and an understanding of the latest threats, we build bespoke defenses for the challenges your family actually faces—whether that's executive impersonation, infrastructure vulnerabilities, or regulatory compliance. We distill our ecosystem perspective into what you need to know.
Simple
We help you focus on high-impact investments without over-engineering or overspending. As your Security Quarterback, we translate technical challenges into clear action plans and coordinate the right defenses without disrupting your operations.
Services
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We conduct a comprehensive review of your security posture, examining your email and cloud setup, device security, access controls, and technology stack. You get a clear picture of your vulnerabilities and actionable recommendations to address them.
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We keep you informed about emerging threats targeting family offices—from sophisticated phishing campaigns to executive impersonation tactics. Regular briefings help you understand the evolving threat landscape and prepare proactively rather than reactively.
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We help you architect secure communications and technology infrastructure from the ground up, ensuring your family office has enterprise-grade defenses tailored to your specific needs and risk profile.
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We identify best-in-class security tools matched to your needs—from executive impersonation protection and digital privacy monitoring to antivirus software and credential management—and train your team to use them effectively. Drawing on deep ecosystem knowledge, you get the right solutions without vendor noise, plus the guidance to leverage them properly.
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We help protect your family's digital footprint by monitoring for private data exposure on the open Internet, managing risks of executive impersonation, and safeguarding sensitive information that could compromise your privacy or reputation.
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We optimize your cloud productivity infrastructure to ensure enterprise-grade security controls are properly implemented, protecting your email, documents, and collaboration tools from unauthorized access.
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We help you navigate regulatory requirements and compliance with family office-specific regulations.
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Drawing on extensive experience responding to sophisticated attacks, we partner with you to contain the breach, understand how it happened, and patch vulnerabilities. We take down malicious infrastructure, restore your defenses, and communicate clearly with those impacted—getting you back on solid ground quickly with actionable recommendations to prevent future incidents.
Schedule a Consultation
Protecting your family's wealth, privacy, and legacy starts with understanding your unique risks. Schedule a consultation to talk through your security concerns and learn how we can help—no commitment, just an honest conversation.
Testimonials
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![Logo with white text on a dark blue background that reads 'H B M LLP']()
"Gary's presentation was a highlight of our conference of global trust and international business attorneys. He shared practical insights on cybersecurity that will help our members better protect their high-net-worth clients."
Hutchings Barsamian Mandelcorn LLP
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"Gary has deep expertise as a CISO and cryptographer—he understands the cybersecurity marketplace and the business problems companies face from a risk and technical perspective. The combination of technical depth and boardroom experience makes his advice uniquely valuable."
Smallstep
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"Gary’s expertise sharpened how we communicate trust to our customers, helping us reinforce a narrative that resonates in industries where confidence is everything."
Tailscale
