During the year leading up to the attacks, three militant groups—Hamas, Palestinian Islamic Jihad and their Lebanese ally Hezbollah—received large amounts of funds through crypto, according to a review of Israeli government seizure orders and blockchain analytics reports. 

Digital-currency wallets that Israeli authorities linked to the PIJ received as much as $93 million in crypto between August 2021 and June this year, analysis by leading crypto researcher Elliptic showed.

Wallets connected to Hamas received about $41 million over a similar time period, according to research by another crypto analytics and software firm, Tel Aviv-based BitOK.