Wrench attacks against crypto holders surge in France as security steps ramp up
France has become the focus of rising “wrench attacks” against crypto holders. Authorities say at least 41 crypto-related kidnappings and home invasions have been reported this year—about once every 2.5 days—prompting officials to prepare new security measures.
Wrench attacks use physical coercion to force victims to transfer digital assets. Security researchers and law-enforcement data indicate the threat is becoming more brazen and violent, and is increasingly driven by targeting people rather than exploiting technical weaknesses. Attackers build profiles using social media activity, public appearances, leaked datasets, and daily routines.
CertiK and researcher Jameson Lopp report 72 verified physical coercion incidents globally in 2025, a 75% jump year-on-year. Incidents involving physical assault rose by 250% year-over-year. Many cases may go unreported or be logged as ordinary robberies, because victims often do not mention crypto.
A widely cited concern is insider leakage: a French tax official allegedly sold sensitive information that helped perpetrators identify victims. The article also cites extreme cases, including the kidnapping of Ledger co-founder David Balland in France in January 2025, and longer, more violent captivity cases reported in other countries.
Researchers warn that organized crews are adopting kidnapping-style tactics with pre-planning (surveillance and follow-home steps). After funds are taken, attackers move quickly and often convert assets into stablecoins, routing across multiple chains.
Suggested mitigation includes multi-signature controls and withdrawal limits to reduce how much can be accessed under duress. Overall, the rise in wrench attacks underscores growing security risk for self-custody users.
Bearish
This is broadly bearish for crypto trading sentiment because it highlights an escalating, physical-threat overlay on self-custody. When “wrench attacks” increase and become more coordinated, traders often price in higher tail-risk: more users adopt conservative custody practices, and liquidity can be affected by heightened fear around holding large balances off-exchange.
In the short term, headlines tied to kidnappings and home invasions can trigger risk-off behavior, especially among retail and smaller wealth holders who are more likely to panic-sell or move to centralized custody. The article’s point that many incidents may be misclassified as ordinary robberies also implies uncertainty—market participants may not get clean data until later.
In the long term, the forced shift toward multi-signature wallets, withdrawal limits, and better operational security could improve resilience, but it may also increase compliance and friction for users. Historically, major security incidents (e.g., large-scale exchange hacks or high-profile custody compromises) tend to create temporary drawdowns and volatility until mitigation practices become mainstream. While this story is not a protocol exploit, the added physical coercion risk can still dampen willingness to hold on-chain amounts, keeping upside capped until confidence returns.