In brief: Crypto-related assaults and kidnappings exploit a gap between digital wealth and everyday safety. Reduce the personal information connecting your identity, home and crypto activity; keep most long-term funds out of immediate reach; and make a calm emergency plan before a crisis occurs. No wallet, passphrase or multisignature setup can guarantee safety under coercion, so personal safety must come before protecting assets.
Physical attacks linked to cryptocurrency are no longer a concern only for celebrities or wealthy founders. In France and elsewhere, criminals may target people they believe can access digital assets, using information gathered online or through data leaks to identify a victim and their routines. That makes cryptocurrency security more than a technical question: privacy, home security and situational awareness are part of the same risk.
Rémi D’Alise, a former Ledger product leader and crypto security specialist interviewed by Cryptoast, recommends making it harder for an attacker to connect a person with their holdings, locate them and force access. Imagine Maya, a first-time Bitcoin investor: she does not need an elaborate security system to take meaningful steps. She can separate her crypto email from her social accounts, avoid posting identifiable routines, and keep only a limited amount readily accessible. These measures cannot remove every threat, but they can reduce exposure and make a rushed attack less likely to succeed.
Crypto assault prevention starts with reducing your digital footprint
Before a criminal can exploit a crypto account, they often need to identify a potential target. A public profile that connects a real name, business role, home area and interest in cryptocurrency can help build that picture. Digital privacy is therefore a practical form of assault prevention, not just a preference about social media.
Separate crypto activity from your personal identity
Use a dedicated email address or pseudonymous alias for crypto services and newsletters, rather than one shared with social networks, shopping accounts or personal correspondence. Keep personal accounts private where possible, and avoid posts that reveal your home, valuables, family members or predictable routines. Fitness apps such as Strava can disclose repeated routes and timings, so review what is visible to other users.
Think about the small links that can add up. A public company filing that displays a home address, a parcel delivered under a crypto-related account, or a social post about a large purchase may each reveal one more piece of the puzzle. Where legally and practically possible, business owners can use a commercial mailing address instead of publishing their residence. To understand how exposed personal information can become a threat, see this report on data leaks and crypto-related extortion.
Check what strangers can already find
Search your name and other commonly used identifiers online, then look beyond the first page of results. Check whether old profiles, public business records, breached email addresses or relatives’ posts reveal your location and connections. Services such as Have I Been Pwned can help identify whether an email address appears in known data breaches; people with a public-facing role may benefit from a professional digital-footprint audit.
Family members can unintentionally expose details that point back to you, including school locations, travel plans or photographs showing a familiar street. The same principle applies to deliveries: send a hardware wallet or other crypto-related equipment to a workplace or collection point when appropriate, rather than making your home address part of another commercial database. The goal is to break the connection between your identity, your address and your crypto activity.
Kidnapping prevention includes home security and travel precautions
Online privacy helps limit discovery, but physical routines matter too. Change predictable habits when practical, be alert to unusual attention around your home or workplace, and avoid announcing when you will be away. These travel precautions are not about living in fear; they are simple ways to avoid making your movements easy to anticipate.
For someone who holds substantial assets, a discreet approach is especially important when discussing investments in public or with new acquaintances. Do not share account balances, wallet arrangements or recovery procedures casually. Recent reporting on crypto kidnapping risks in France illustrates why suspected access to funds can put a person, not just an account, in danger.
Plan for emergencies before you need to act
Make an emergency plan with trusted people: decide whom to contact, how to confirm you are safe, and what information they should give emergency services. Keep essential contacts accessible without relying on a single device or account. If you believe you are being followed or face an immediate threat, move toward a staffed public place when it is safe to do so and contact local emergency services.
If an assault is underway, preserving your life is more important than preserving cryptocurrency. Avoid sudden movements or actions that could escalate immediate danger, and do not assume that a wallet feature will protect you from physical coercion. Once safe, contact law enforcement and follow their guidance; this practical guide to responding to a crypto-related attack can help clarify steps to take afterward. Emergency planning is about reducing harm, not trying to outsmart an attacker in the moment.
Keep most cryptocurrency out of immediate reach
A hardware wallet protects private keys from many online threats, but it cannot by itself prevent someone from demanding access in person. D’Alise’s central recommendation is to avoid keeping significant crypto immediately accessible at home if physical coercion is a concern. For long-term holdings, consider whether recovery materials can be stored separately from your residence, such as in a bank safe-deposit box, while carefully weighing access, inheritance and recovery needs.
Some holders divide their assets so that only a small portion is readily available for routine use, while the majority is stored through arrangements that take more time or require separate access. For example, someone might keep 5–10% accessible and place the rest beyond immediate reach. That is an illustration, not a universal formula: the right balance depends on wealth, transaction frequency, technical confidence and personal exposure. An attacker may also suspect that additional funds exist, so this approach is risk mitigation rather than a guarantee.
Use multisignature and passphrases only when you can manage them
A multisignature wallet may require two of three keys to approve a transaction, but it offers little physical separation if two keys are stored in the same home. To create meaningful barriers, keys need to be distributed across genuinely separate locations and managed with a reliable recovery plan. That added complexity can create its own risks, including lost keys or a transaction the owner cannot complete when needed.
A passphrase can create access to a separate wallet, sometimes described as an additional word beyond the recovery phrase. It may help some experienced users, but it is not a universal solution: an attacker may know the technique, and the owner must remember and recover the passphrase correctly. Choose a setup you can operate safely under ordinary conditions; complexity that you cannot maintain is not protection.
Build delays into secure transactions
Some exchanges and custody services offer withdrawal delays, address allowlists or vault features that can slow a transfer. Depending on the service and current settings, examples include withdrawal holds at SwissBorg, Coinbase Vault withdrawal delays, and waiting periods for newly added addresses at platforms such as OKX or Bybit. Kraken may also apply a temporary hold to new withdrawal addresses in certain circumstances, including after account security changes.
These controls can provide time to notice an account takeover or resist a rushed transfer, but features and terms change, so verify the current rules directly with the provider. They also do not remove platform, account or counterparty risks. For beginners, secure transactions begin with strong, unique passwords, multifactor authentication, withdrawal notifications and a clear understanding of who controls the assets.
Self-custody gives you direct control over your keys, while exchange custody may offer account-level protections and recovery processes. Neither choice is automatically safest for every person. Match the arrangement to your experience and exposure, and test recovery procedures before moving large amounts. Good cryptocurrency security is a layered plan: less public information, carefully separated access, sensible transaction delays and a clear response plan.
