Cybersecurity for Family Offices: Closing the Gaps That Attackers Exploit

The Family Office Cybersecurity Crisis

The numbers are stark. Deloitte’s research found that 57% of family offices have no cybersecurity strategy in place. JPMorgan’s Global Family Office Report revealed that 24% experienced a cyber breach in the past year. And perhaps most alarming, 20% of family offices have no cybersecurity measures at all — despite managing assets that often run into hundreds of millions.

These are not small businesses that lack resources. These are sophisticated organisations managing generational wealth, and yet the technology protecting that wealth frequently falls years behind the threat landscape.

Nerdster provides family office cybersecurity in London that closes these gaps. We bring the structured, comprehensive security approach of enterprise financial services to the unique environment of single and multi-family offices.

Why Family Offices Are Uniquely Vulnerable

Family offices face a threat profile that is distinct from any other type of organisation. The blurred lines between personal and business technology, the involvement of multiple family members with varying levels of security awareness, the management of assets across jurisdictions, and the extraordinarily high value of a successful attack all create conditions that sophisticated cybercriminals are specifically tooling up to exploit.

Social engineering is the primary attack vector. Attackers research principals through publicly available information, social media, and data broker records to craft highly targeted phishing campaigns, impersonation attempts, and manipulation schemes. In 2026, AI-powered voice cloning has made phone-based impersonation attacks alarmingly convincing, with several high-profile family office incidents reported in the financial press.

Building a Cyber Risk Governance Framework

A cybersecurity strategy for a family office is not the same as a corporate security policy. It must account for personal device usage across family members, multi-property technology environments, household staff access, adviser communications, and the privacy expectations of UHNW individuals.

Our cyber risk governance framework is built specifically for this reality. We begin with a comprehensive risk assessment that maps assets, identifies vulnerabilities, and models the specific threats your family office faces. From there, we develop security policies, implement technical controls, deploy monitoring, create incident response procedures, and establish ongoing governance reporting — all tailored to your family’s circumstances.

Multi-Property Technology Management

Modern family offices typically manage technology across multiple properties — a London townhouse, a country estate, international residences, and possibly commercial premises. Each property has its own network infrastructure, security systems, and connectivity requirements, but they all need to operate under a consistent security framework.

We provide unified management across all locations: network design and maintenance, smart home security, Wi-Fi and connectivity, remote access for principals and staff, and coordinated monitoring. When a security event occurs at any property, our team responds with full context of the entire environment.

Executive Digital Protection

For principals and their families, the digital threat extends far beyond corporate email. Personal social media accounts, mobile devices, travel itineraries, property records, and even children’s online activities create exposure that attackers leverage for reconnaissance and targeting.

Our executive digital protection service proactively monitors and defends against these risks — dark web credential monitoring, social media exposure assessment, personal device security hardening, AI deepfake detection, and digital footprint management. We protect not just the office, but the people behind it.

Discretion and Trust

Working with UHNW families requires absolute discretion. Our team operates under strict confidentiality agreements, maintains minimal documentation footprint, and is experienced in the sensitivities of family office environments. Security is implemented quietly, effectively, and with complete respect for privacy.

The 57% of family offices without a cybersecurity strategy represent an opportunity — not just for attackers, but for forward-thinking families who choose to close that gap before it is exploited.