Crypto Kidnapping in France: Judge Held for Ransom in Latest Wrench Attack

French authorities arrested six suspects after a magistrate and her mother were kidnapped and held in a garage, with captors demanding a cryptocurrency ransom.

The incident is part of a alarming 75% surge in violent “crypto wrench attacks” in 2025, with over $41 million lost and France emerging as a global hotspot. This trend underscores the critical and growing physical security risks associated with digital asset ownership as adoption increases.

French Magistrate Kidnapped in Crypto Ransom Case

In a brazen attack highlighting the dark intersection of crime and cryptocurrency, French police have arrested six individuals following the kidnapping of a magistrate and her elderly mother. The abductors held the women for several hours in a garage in the Drôme region before a vigilant neighbor heard noises, intervened, and enabled their escape. Both victims were found injured.

According to prosecutors, the kidnappers specifically demanded a ransom in cryptocurrency. They targeted the magistrate’s partner, who was absent during the abduction, sending a message with a photo of the captives to pressure payment. Prosecutor Thierry Dran revealed the magistrate was “an associate in a startup with cryptocurrency activities,” suggesting a deliberate targeting based on perceived crypto wealth. No ransom was ultimately paid. This case follows a disturbing pattern of similar high-profile kidnappings in France, including the 2025 abduction of Ledger co-founder David Balland, where attackers severed his finger to coerce a crypto payment.

The scale of this operation—involving up to five abductors—has raised concerns among security experts. A representative from blockchain security firm CertiK told Decrypt that while the methods are typical of “wrench-type incidents,” the level of coordination suggests these crimes are evolving “into organized crime.” The case is a stark reminder that the pseudonymity and irreversible nature of crypto transactions, while beneficial for legitimate users, are also attractive vectors for extortion.

2025: A Record Year for Violent Crypto “Wrench Attacks”

This kidnapping is not an isolated event but part of a dangerous and accelerating global trend. A new report from CertiK confirms 2025 was a “record year” for so-called crypto wrench attacks—physical assaults, kidnappings, and home invasions targeting digital asset holders. Verified incidents skyrocketed by 75% year-over-year, reaching 72 attacks, with confirmed financial losses exceeding $40.9 million.

The geographic epicenter of this crime wave has shifted dramatically. While Asia remains a high-risk zone, Europe now accounts for over 40% of global attacks, nearly doubling its share from 2024. France has become the single most affected country, recording 19 attacks last year and surpassing the United States, which saw eight. This surge is attributed to proliferating criminal groups in France, Spain, and Sweden specifically targeting crypto holders.

Angela Ang of TRM Labs notes that 2025 saw roughly 60 reported physical assaults on crypto holders. “The rising use of crypto in kidnapping and extortion is reflective of the mainstream adoption of crypto,” she stated. Criminals are increasingly using social media and even illicit access to government databases—as seen in a separate French case involving a corrupt tax official—to build detailed profiles of potential targets, focusing on public indicators of cryptocurrency wealth.

Key Statistics: The Alarming Rise of Crypto Wrench Attacks

The data paints a clear picture of a escalating security crisis for crypto users:

• 75% Increase: Year-over-year jump in verified wrench attacks from 2024 to 2025.
• $40.9 Million in Losses: Confirmed financial losses from these physical crimes in 2025.
• 72 Incidents: The total number of verified attacks globally last year.
• 40% in Europe: The continent’s share of global attacks, marking it as the new hotspot.
• 19 Attacks in France: Making it the world’s most targeted country, ahead of the U.S.
• 250% Jump: The increase in physical assaults as a method within these attacks.

What Are Crypto Wrench Attacks?

For those new to the space, the term “wrench attack” originates from the grim joke that the weakest link in cryptocurrency security isn’t your software wallet, but the threat of a wrench to your head. It refers to any physical act of violence or coercion used to steal cryptocurrency secrets—primarily seed phrases or private keys—or to force a victim to transfer funds.

Unlike remote hacking, wrench attacks bypass all digital security measures. Common methods include:

• Kidnapping & Torture: Holding victims or their family members hostage and threatening harm to force compliance, as seen in the French magistrate and Ledger co-founder cases.
• Home Invasion: Forcibly entering a victim’s residence to locate and steal hardware wallets or written seed phrases.
• Assault & Robbery: Mugging or confronting an individual believed to be carrying access to significant crypto funds.

The appeal to criminals is twofold. First, cryptocurrency transactions are pseudonymous and largely irreversible, making stolen funds difficult to trace and recover. Second, victims with substantial crypto holdings may be less likely to keep all their wealth in traceable, traditional bank accounts, making physical coercion seem like a viable, if horrific, strategy. As CertiK notes, while crypto makes the ransom mechanism efficient, the underlying threat to personal safety for financial gain is not unique to digital assets.

How to Protect Yourself From Crypto Kidnapping and Wrench Attacks

As the threat landscape evolves, so must personal security practices. Relying solely on a hardware wallet is insufficient if you become a target. Security experts recommend a multi-layered approach focused on operational security (OpSec) and plausible deniability.

For Individual Investors:

• Minimize Your Public Footprint: Avoid sharing portfolio screenshots, wallet addresses tied to your identity, or discussing holdings publicly on social media. Consider this your first and most important line of defense.
• Use Decoy Wallets: Maintain a separate, “hot” wallet with a small, plausible amount of cryptocurrency (e.g., a few thousand dollars’ worth). In a coercive situation, you can surrender this wallet and its seed phrase to satisfy attackers quickly.
• Geographic Separation: Never store your hardware wallet and its written seed phrase (or the multiple copies of it) in the same location. Split them across secure, geographically separate locations like safety deposit boxes or trusted family members’ homes (without revealing the full context).

For High-Net-Worth Individuals and Their Families:

• Implement Multi-Signature Wallets: Use a 2-of-3 or 3-of-5 multisig setup for significant holdings. This requires multiple private keys to authorize a transaction, meaning no single family member can be forced to move all funds under duress.
• Employ Time-Locked Contracts: For the largest vaults, consider smart contracts that enforce a mandatory delay (e.g., 48-72 hours) on any withdrawal. This creates a crucial window to alert authorities and freeze assets if you are compromised.
• Formalize Security Protocols: Extend security considerations to family members and close associates. Have discreet, pre-planned responses for suspicious contact or threats. Consider professional executive protection advice.

The tragic case of the French magistrate is a sobering wake-up call. As cryptocurrency continues its journey into the mainstream, the community must prioritize physical security with the same rigor applied to digital safeguards. Discretion, layered security, and awareness—on-chain, online, and offline—are no longer optional for serious holders.