A team at the New York-based firm Cahill, Gordon & Reindel is representing a Manhattan couple charged in a cryptocurrency money laundering scheme that led to the largest financial seizure in the history of the U.S. Department of Justice.

Ilya Lichtenstein and Heather Morgan were each accused of attempting to launder the proceeds of nearly 120,000 bitcoin, worth about $4.5 billion, that was stolen during the hack of a bitcoin exchange in 2016, according to prosecutors. They are charged in federal court in Washington, D.C.