The Dutch family featured by CNBC bought Bitcoin when it was around $900 per coin in 2017 and, after turning their holdings into a seven‑figure portfolio, now keep the bulk of their crypto in secret vaults spread across four continents. Their approach illustrates how geographic diversification and physical security can be combined to protect digital assets.
Why diversify storage locations
- Jurisdictional risk reduction – Storing hardware wallets in multiple countries limits exposure to any single legal or regulatory change.
- Physical security – If one vault is compromised, the others remain safe, reducing the chance of total loss.
- Travel convenience – By keeping wallets near a residence rather than on the move, the family avoids the need to carry sensitive devices through airports and border checks.
Common storage methods
| Method | Typical location | Advantages | Drawbacks |
|---|---|---|---|
| Rental apartments / friends’ homes | Private residences in various cities | Low cost, easy access | Relies on trust of occupants, may be subject to local search powers |
| Self‑storage facilities | Commercial storage units | Professional security, often 24 h monitoring | May require identification, could be linked to banking systems |
| Non‑bank private vaults | Dedicated vault operators in jurisdictions such as Singapore, Switzerland, Liechtenstein, Austria (formerly) | High security, often anonymous, minimal banking involvement | Annual fees (≈ $100–$200), limited availability in some countries |
| Bank safe‑deposit boxes | Banks in foreign jurisdictions | Established infrastructure, insurance options | May be considered part of the banking system and thus reportable to tax authorities; some banks now require full identification |
Legal and tax considerations
- Reportable assets – Placing a crypto wallet in a bank‑linked safe‑deposit box can trigger reporting requirements in many countries, especially for U.S. citizens. Non‑bank vaults generally fall outside the traditional banking system, offering more flexibility but still subject to local laws.
- Professional advice – Tax regulations for cryptocurrency vary widely and change frequently. Engaging qualified tax professionals in each jurisdiction is essential to remain compliant.
- Ownership of property – Owning real estate abroad provides a legitimate address for storing hardware wallets and can simplify access to local vault services.
Practical steps for secure, diversified storage
- Identify three to six jurisdictions where you have either property ownership, long‑term rental agreements, or trusted contacts.
- Acquire hardware wallets (e.g., Ledger, Trezor) and encrypt them with strong, unique passphrases.
- Distribute wallets:
- Place one in a personal safe at a primary residence.
- Store another in a non‑bank private vault in a jurisdiction known for strong asset protection (e.g., Singapore, Switzerland, Liechtenstein).
- Keep a third in a self‑storage unit or a trusted friend’s home in a different continent.
- Document locations securely (e.g., encrypted digital note) and share access instructions only with trusted heirs or legal representatives.
- Maintain low physical profiles – Avoid traveling with the wallets; keep them stationary in the chosen locations.
- Review and rotate – Periodically assess the security of each storage site and relocate wallets if a location’s risk profile changes (e.g., new regulations, political instability).
Risks to watch
- Loss or misplacement – A single misplaced wallet could contain a substantial portion of wealth; redundancy mitigates this risk.
- Customs and airport security – Carrying a hardware wallet through security checkpoints may attract scrutiny; keeping devices off‑person reduces this exposure.
- Regulatory crackdowns – Some governments may increase monitoring of crypto‑related assets, especially if stored in bank‑linked facilities.
- Physical damage – Fire, flood, or other disasters can affect storage sites; choose vaults with appropriate insurance and environmental controls.
Bottom line
Storing cryptocurrency in geographically dispersed, physically secure locations—ranging from private vaults to personal safes—offers a robust defense against both legal and physical threats. The strategy requires careful planning, professional tax guidance, and ongoing risk assessment, but it aligns with the broader principle of not keeping all assets in a single jurisdiction or storage method.
