Israel extradited Alexander Block to the United States early Thursday to face charges over the alleged theft of about USD 2.8 million in digital assets from cryptocurrency platform Nomad, the State Attorney’s Office announced. Block, an Israeli-Russian citizen formerly known as Alexander Gurevich, was transferred after legal proceedings in Israel, including an unsuccessful Supreme Court appeal and a request for a further hearing. Prosecutors allege that in August 2022 Block exploited a security flaw to obtain digital tokens without depositing the assets that were supposed to back them. The tokens were then allegedly moved between digital wallets to conceal their origin. The US indictment, filed in August 2023 in the Northern District of California, charges Block with eight counts involving computer offenses, transferring stolen property, and money laundering. The US requested his extradition in December 2024. Nomad worked as a bridge between blockchain networks, letting users lock digital assets on one network and receive corresponding tokens on another. Prosecutors say Block bypassed the check confirming the original assets had been locked, withdrew about USD 2.8m in tokens on August 1, 2022, and then converted the tokens into other cryptocurrencies. Block was arrested at Ben-Gurion Airport in May 2025 while preparing to travel to Russia. Israel says he had changed his surname from Gurevich to Block and obtained a passport in his new name shortly before his arrest. The Jerusalem District Court approved the extradition in July 2025. His appeal argued that the transactions used functions available in Nomad’s automated system and that publicly visible blockchain transfers undermined the money-laundering allegations. Israel’s Supreme Court rejected those arguments, ruling that exploiting a programming flaw could amount to unlawful computer intrusion even where the action was technically possible, and that publicly visible transactions did not necessarily identify the people controlling the wallets or rule out concealment. Thursday’s transfer was coordinated by the prosecution’s International Department and the Israel Police’s operational coordination and Interpol units. Block was extradited to the United States and is set to face the federal charges in the Northern District of California.