Israeli law enforcement authorities have ordered dozens of cryptocurrency accounts to be closed and seized millions of dollars’ worth of crypto coins as they step up longstanding efforts to cut links between crypto markets and Hamas after its attack on the country.

People directly familiar with Israel’s enforcement actions told the Financial Times that more than 100 accounts on Binance — the world’s largest crypto exchange — had been closed since Hamas’s assault began on October 7. Authorities have also requested information on up to 200 additional crypto accounts, most of which are held on Binance, the people said.

Binance confirmed it had “blocked” a “small number” of accounts since the summer and added that it “follows internationally recognised sanctions rules”. It declined to provide further comment.