Cyber risk is now a private client issue

For private clients, cyber risk is no longer an abstract technology concern or something that can be delegated entirely to IT providers. Today, it represents a direct threat to personal wealth, family safety, confidentiality and reputation.

This was the central theme explored at a series of roadshow events across Switzerland hosted by Ocorian and Toro Solutions, where private clients, family office executives and trusted advisers were taken inside the real‑world methods used by organised crime groups and state‑backed actors to compromise individuals, families and the structures that exist to protect them.

The overriding message was clear: cybersecurity is now personal.

The modern threat: blended, opportunistic and centred on people

The vast majority of cyber incidents affecting private clients do not begin with highly technical attacks. They begin with human behaviour – email usage, phone calls, social media visibility, travel routines and everyday decision‑making.

Attackers today operate in a blended way, combining:

• Cyber techniques (email compromise, phishing, ransomware)
• Social engineering (impersonation, pressure tactics, false urgency)
• Physical access (device theft, surveillance, unauthorised access)

For private clients, this matters because the individual – not the system – is often the weakest point of entry. Once personal email, messaging or a device is compromised, criminals can quietly observe communications, advisers and transactions until an opportunity to intervene arises.

Crucially, these attacks are rarely cinematic or targeted at the outset. They are opportunistic. Criminals look for people who are busy, trusting or lightly protected – and simply move on when basic safeguards are in place.

Why private clients and family offices are particularly exposed

Private clients and family offices present an unusually attractive risk profile.

They often combine:

• Significant financial authority held by a small number of individuals
• Trusted relationships with advisers, trustees and banking partners
• Complex structures spanning jurisdictions, entities and service providers
• A high degree of discretion, speed and informality in decision‑making

In many real‑world incidents discussed during the session, no systems were “hacked” in the traditional sense. Instead, attackers:

• Gained access to a personal or adviser email account
• Monitored communications over time
• Altered payment instructions or impersonated a trusted contact
• Applied pressure at the moment funds were due to move

For private clients, this type of attack is particularly dangerous because it exploits trust, familiarity and routine.

Artificial intelligence: amplifying both convenience and risk

AI is already delivering efficiency gains for private clients and their advisers – but it is also reshaping the threat landscape.

On the defensive side, poorly governed AI deployments can unintentionally surface sensitive information simply because permissions already existed beneath the surface.

On the offensive side, AI allows criminals to:

• Generate convincing emails, messages and documents at scale
• Imitate voices and writing styles of family members or advisers
• Operate across languages, time zones and jurisdictions

The most striking examples now involve deepfake voice and video impersonation, where individuals are persuaded to transfer funds or disclose information, believing they are dealing with a trusted authority.

For private clients, this fundamentally undermines traditional verification based on familiarity or recognition.

Email and messaging: still the primary route into private lives

Email remains the single most common entry point for attacks on private clients.

Once access to an email account is achieved – personal or professional – criminals can:

• Identify banking relationships and advisers
• Monitor invoices, distributions and transactions
• Create hidden inbox rules to divert key messages
• Time fraudulent requests with precision

In a private client context, this often results in payment diversion fraud, where legitimate instructions are subtly altered and reinforced through follow‑up calls or messages designed to create urgency.

The hidden risk of personal digital footprints

One of the most powerful demonstrations in the session was how easily a private individual’s digital footprint can be assembled from public and semi‑public sources.

Information commonly used by attackers includes:

• Email addresses exposed in historical data breaches
• Reused passwords across platforms
• Employment history and adviser relationships
• Home addresses, family members and travel patterns

This information is not used in isolation. It is combined to enable more convincing impersonation, social engineering and, in some cases, physical targeting.

For private clients, maintaining privacy is no longer just about discretion – it is about active management of digital exposure.

Cyber resilience begins with behaviour, not technology

While the techniques described may sound sophisticated, the majority of successful attacks exploit basic lapses rather than advanced vulnerabilities.

For private clients and families, the most effective safeguards remain simple:

• Multi‑factor authentication on all email, banking and cloud accounts
• Unique passwords stored in a reputable password manager
• Clear rules that no individual moves funds without independent verification
• Willingness to slow down, pause and challenge unusual requests

Crucially, trusted family members are increasingly targeted as indirect routes of access. Cyber awareness must therefore extend beyond principals to family, household staff and close advisers.

Governance and preparedness: the role of trusted structures

For family offices, trustees and fiduciary arrangements, governance around cyber risk is now just as important as governance around tax, succession or investment.

Principals should be confident their structures can answer:

• How would we know if a compromise had occurred?
• What happens in the first hours of an incident?
• Are advisers and service providers held to consistent security standards?

Cyber insurance may help mitigate financial loss, but it does not protect privacy, reputation or family confidence. Preparation and rehearsal are essential.

Protecting more than assets

The shared message from Ocorian and Toro Solutions is that effective cyber resilience for Private Clients comes from awareness, governance and disciplined behaviour, supported by trusted advisers who understand both technology and the private client context.

Ocorian’s experienced global team combines deep technical expertise with a thorough understanding of the Private Client landscape, ensuring that your family’s wealth is managed securely, efficiently and with complete confidentiality. To learn more about our cross-border structuring and administration solutions, reach out to the team.

Contact the Toro team to discover how their converged security solutions can defend, manage, optimise and respond across every layer of your family office.