Family offices face a distinctive threat profile — high-value targets, lean security teams, and principals who expect friction-free access. Here's how to build security that fits.
Why family offices are uniquely targeted
Family offices in San Francisco, Marin County, the Peninsula, and the broader Bay Area manage significant concentrations of wealth and highly sensitive personal information — financial accounts, estate plans, tax records, legal documents, and family personal data. They are, by definition, high-value targets.
At the same time, most single-family offices and many multi-family offices operate with lean internal teams. There may be no dedicated IT staff, let alone a security function. Security decisions are made by office managers, CFOs, or outside accountants — often without deep technical expertise.
This combination — high value, limited security resourcing, and principals who expect frictionless access to their own information — creates a distinctive threat profile that generic enterprise security programs don't address well.
The threat actors and their methods
Family offices face threats from several distinct categories of actors. Nation-state actors target ultra-high-net-worth families for intelligence and financial gain — this is not hypothetical. Business email compromise (BEC) attacks specifically target wire transfer approval workflows, which family offices execute routinely. Insider threats — whether through disgruntled employees or unwitting insiders manipulated by social engineering — are elevated in environments where a small number of staff have broad access.
The most common initial access vectors we see: phishing targeting principals and senior staff directly, credential stuffing against email and financial portal accounts, and social engineering of financial institution staff to redirect accounts.
The consequences are severe. Wire fraud losses from BEC attacks against family offices regularly reach seven and eight figures. Data exfiltration of estate documents, financial records, or personal information creates exposure that extends far beyond financial harm.
Security controls calibrated for family offices
Email security and anti-phishing. Email is the primary attack vector. Every family office — regardless of size — needs: phishing-resistant MFA (hardware security keys or passkeys, not SMS), advanced email filtering with impersonation detection, and DMARC/DKIM/SPF configured to prevent domain spoofing.
Wire transfer controls. Establish out-of-band verification requirements for all wire transfer instructions, regardless of apparent sender. A phone call to a known number — not one provided in the email — is the minimum. Dual-control approval for transfers above defined thresholds is essential.
Privileged access for financial systems. Access to custodian portals, banking systems, and investment platforms should be governed under a privileged access model: MFA required, session logging enabled, access reviewed quarterly. Principals' access should be scoped to what they actively use.
Endpoint security for principal devices. The principal's personal laptop, tablet, and phone are often the highest-risk endpoints in the family office environment. MDM enrollment, full-disk encryption, and automated patch management are baseline requirements — even for personal devices used to access family office systems.
Privacy and discretion as a design requirement
Family office security programs must be designed with discretion as a first-order requirement. Security controls that generate friction for principals — excessive MFA prompts, intrusive monitoring, lengthy approval workflows — will be worked around or disabled. The goal is security that fits the way the family and office actually operate.
This means: MFA implementations that use hardware keys or passkeys rather than SMS codes (more secure and less annoying); conditional access policies that recognize trusted devices and locations; monitoring that operates in the background without surfacing to principals unless there is a genuine incident.
It also means handling the data with the same discretion you'd expect from outside counsel or a private banker. Security assessments, incident investigations, and ongoing monitoring should be conducted under appropriate confidentiality structures.
Getting started
For family offices in San Francisco, Marin County, Tiburon, Sausalito, Atherton, Hillsborough, Woodside, and across the Bay Area, we recommend beginning with a security assessment scoped specifically to the family office environment — not a generic enterprise security audit.
The assessment covers: identity and access controls for all financial and administrative systems, email security configuration, endpoint security posture for principal and staff devices, wire transfer and financial controls, vendor and external access risks, and incident response readiness.
The output is a prioritized roadmap that your team can execute against — or that Intragreat can execute on your behalf through our managed services program. Most family offices reach a defensible security posture within 90 days of beginning a structured program.
Intragreat works with family offices and private wealth organizations throughout the San Francisco Bay Area. Our engagements are conducted with absolute discretion and billed transparently — no retainer lock-ins, no inflated vendor markups.