Hamas shifts tactics in bitcoin fundraising, highlighting crypto risks - research

By Tom Wilson and Dan Williams

LONDON/JERUSALEM, April 26 (Reuters) - The armed wing of Hamas is using increasingly complex methods of raising funds via bitcoin, researchers say, highlighting the difficulties regulators face in tracking cryptocurrency financing of outfits designated by some as terrorist groups.

The Gaza-based Izz el-Deen al-Qassam Brigades, which is proscribed by the United States and the European Union, has been calling on its supporters to donate using the digital currency in a fundraising campaign announced online in late January.

Originally, it asked donors to send bitcoin to a single digital address, or wallet.

However, according to research shared with Reuters by leading blockchain analysis firm Elliptic, in recent weeks it has changed the mechanism, with its website generating a new digital wallet with every transaction.

This makes it harder for companies around the world to keep tabs on the group's cryptocurrency financing, the researchers said. A single digital wallet can be red-flagged to cryptocurrency exchanges, in theory allowing them to prevent funds moving through their systems to that destination.

But a different wallet for each donation makes this so-called tagging far more complicated, Elliptic said.

Between March 26 and April 16, 0.6 bitcoin - worth around $3,300 - was sent to the website-created wallets, Elliptic's research found. All told, the four-month fundraising campaign has raised around $7,400, the firm said.

A spokesman for Hamas, which has ruled the Palestinian territory of Gaza since 2007, declined to comment on Elliptic's research.

Such funds are a fraction of the tens of millions of dollars in annual funding that Israel and the United States says Hamas receives from Iran. Yet the campaign gives insight into how a proscribed group has gone about bitcoin fundraising.

"They are still in experimentation stage - trying it out, seeing how much they can raise, and whether it works," said Elliptic co-founder Tom Robinson.

Iran has not publicly detailed its funding of Hamas, though it has not denied its support for the group. Hamas has said Tehran is the biggest backer of the al-Qassam Brigades.

London-based Elliptic and U.S. rival Chainalysis are the most prominent blockchain analysis firms, and have gained traction as watchdogs, cryptocurrency companies and firms such as hedge funds seek tools to track digital coins.

Backed by investors including Banco Santander's venture capital arm, Elliptic's clients include financial firms, regulators and law enforcement agencies in Europe and the United States.