The Rise of Deepfake Attacks:
What High-Net-Worth Individuals Need to Know
Artificial intelligence has made it possible to convincingly replicate anyone's voice and likeness. For wealthy individuals with a public profile, this technology represents a new and serious threat.
What Is a Deepfake Attack?
A deepfake is a synthetic media product — audio, video, or image — created using artificial intelligence to convincingly replicate a real person's voice, appearance, or both. The technology has advanced rapidly in recent years. What once required significant technical expertise and expensive hardware can now be produced by anyone with a consumer laptop and a few minutes of source audio or video.
For high-net-worth individuals — particularly those with a public profile, media presence, or significant online footprint — this technology creates a new category of threat that did not exist five years ago.
How Deepfakes Are Used in Attacks
Voice Cloning for Financial Fraud
AI voice cloning can replicate a person's voice from as little as three seconds of audio. Criminals use cloned voices to impersonate executives, family members, or trusted advisers — instructing financial institutions, accountants, or family members to transfer funds. Several high-profile cases have resulted in losses of millions of dollars.
Video Deepfakes for Extortion
Realistic video deepfakes can place a person's face and voice into fabricated scenarios — including compromising situations. These are used for extortion: pay, or the video is distributed. The psychological impact on victims and their families can be severe regardless of whether the content is ultimately distributed.
Identity Verification Bypass
Many financial institutions and government services use video or voice verification as part of their identity confirmation process. Deepfake technology can be used to bypass these controls, enabling fraudulent account access or identity establishment.
Reputational Attacks
Fabricated audio or video of a person making controversial statements, engaging in inappropriate behaviour, or revealing sensitive information can be used for reputational damage — by competitors, former associates, or malicious actors with personal grievances.
Social Engineering Enhancement
Deepfake audio or video can make social engineering attacks significantly more convincing. A phone call that appears to come from a trusted person, with a convincingly replicated voice, is far more likely to succeed than a text-based approach.
The Source Material Problem
Deepfake attacks require source material — audio or video of the target. For high-net-worth individuals with a public profile, this material is often readily available: conference presentations, media interviews, social media videos, and public event footage all provide the raw material needed to create convincing synthetic replicas.
Individuals with minimal public profiles are significantly harder to target with deepfake technology. This is one of several reasons why managing your digital footprint and limiting unnecessary public exposure is a meaningful protective measure.
Protective Measures
Establish verbal code words with family members and trusted advisers — a shared secret that can be used to verify identity in unexpected or high-stakes communications
Implement strict verification protocols for any financial instruction received by phone or video call, regardless of how convincing the caller appears
Minimise unnecessary public audio and video content — review what is publicly available and remove what is not necessary
Brief family members, personal assistants, and financial advisers about deepfake risks and verification procedures
Use out-of-band verification for high-value transactions — confirm via a separate, pre-established channel before acting on any instruction
Monitor for synthetic media featuring your likeness using available detection services
The Importance of Verification Culture
The most effective defence against deepfake attacks is not technical — it is cultural. Organisations and families that have established clear verification protocols, where it is normal and expected to confirm identity through secondary channels before acting on unusual instructions, are significantly more resistant to this class of attack.
This requires deliberate effort to establish and maintain. But the investment is modest compared to the potential consequences of a successful deepfake attack against a high-net-worth individual or their family.
Protect against emerging threats
Castlebridge monitors the evolving threat landscape and ensures our clients are protected against emerging attack vectors — including deepfake and AI-enabled fraud. Contact us to discuss your specific risk profile.
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