ZachXBT announced his involvement in a crypto kidnapping case. The on-chain researcher assisted French authorities and helped intercept some of the funds via Binance.
ZachXBT announced he worked on the case of the streamer TeufeurS in 2023. The case was part of the wave of crypto kidnapping in France. TeufeurS was extorted for a ransom after a family member was kidnapped in France. Later, TeufeurS announced he had abandoned crypto and left France for the safety of his family.
The streamer ended up paying a $2M ransom, of which $800K was traced and frozen in partnership with the Binance Security team.
ZachXBT noted the case was sensitive, and he kept the assistance confidential. Six suspects related to the incident were later arrested.
ZachXBT joins cases against crypto thieves in France
ZachXBT has been known for tracing funds and helping retail holders. He has taken up cases of hacks or entirely on-chain scams. He has also assisted authorities in several recent crypto theft cases in France.
ZachXBT has specialized in asset freezes and, where possible, in identifying wallet holders. He advises crypto owners to report losses as soon as possible to increase the chance of intercepting some of the funds.
‘I prioritize these types of cases as they have grown more frequent amidst this disturbing trend,’ wrote ZachXBT in a post on X.
As Cryptopolitan reported earlier, a fast reaction may be the key to salvaging some of the stolen crypto. In the past year, stolen coins or tokens moved even faster, challenging investigators to move fast and call for freezes where possible.
Freezing funds was also one of the decisions in the recent Kelp DAO hack. Funds from personal kidnappings may be easily intercepted, as the initial wallets are well known.
France is seeing an increase in physical attacks to steal crypto
French authorities reported 41 kidnappings or physical attacks linked to crypto ownership since January.
The latest attack happened on April 21, when police impersonators extorted a family for nearly $1M in BTC.
🚨🇫🇷 Nouveau braquage crypto en France : une famille séquestrée trois heures à Ploudalmézeau (Finistère), 700 000 € extorqués en cryptomonnaies.
Ce lundi 20 avril 2026 peu avant 9h, 2 individus cagoulés et armés d'un pistolet automatique se sont introduits dans un pavillon des… https://t.co/mwvmdiX2NA pic.twitter.com/cEh7Q7E6B7
— France Cryptos 🔗 (@FranceCryptos) April 22, 2026
The robbers held the family hostage until they agreed to transfer the funds. France uses Euro area rules on crypto ownership, under which wallet holders must declare their main address on all exchange or brokerage platforms.
Any data leak may allow attackers to dox owners and discover their real-world location. Based on Triple A data, around 5% of French citizens own crypto assets. Surveys have shown that up to 23% of the population may own crypto, based on Coinmarketcap data. France also ranks in the 22nd spot based on global crypto adoption, slightly above the average for the EU.
French tax law may be the other culprit, as citizens must declare digital asset accounts, even if the crypto was acquired abroad. Wallets are tracked and subjected to self-reporting on capital gains.
Citizens must also report self-hosted wallets and link them to their identity. At least one case of leaked tax data has been connected to crypto kidnappings.
The smartest crypto minds already read our newsletter. Want in? Join them.
Source: https://www.cryptopolitan.com/zachxbt-assists-french-authorities-in-crypto/