US authorities have announced a multi-stage effort to interrupt digital fundraising tied to Hamas, reporting that more than $560,000 in cryptocurrency intended for the group has been taken into government custody.

The Justice Department said court-authorized actions also allowed the FBI to assume control of websites, servers, and related communication platforms used to solicit donations and attract supporters.

According to officials, the seized digital assets and online infrastructure were operated on behalf of Hamas’s military wing, the Al Qassam Brigades. Investigators described a fundraising model that mixed encrypted chats, a public website, and a rotating set of cryptocurrency addresses.

The group, they said, sought…