An extraordinary Bitcoin fraud of €66 million has occurred in Italy. The two directors of The Rock Trading, a cryptocurrency exchange under investigation for some time, were arrested in Milan. The investigations were initiated by more than 700 lawsuits filed by clients for non-return of their investments. The investigation determined that the problem was worth approximately 66 million euros and involved over 18,000 clients. Marcello Viola, the Milan prosecutor, emphasized that this is "one of the first major investigations into the world of bitcoin, which required penetrating the cross-border mechanisms of intangible values". Two international legal assistance requests have been issued to the United States and Switzerland, along with two European investigation orders for Lithuania and Ireland. The charges against the two administrators include fraudulent bankruptcy, false corporate communications, fictitious capital formation, and asset mismanagement. "These investigations demonstrate how the world of cryptocurrencies can pose a danger to savers, particularly due to the difficulty in tracing illicit activities and their proceeds, complicating the recovery of funds in a regulatory framework that remains uncertain", the prosecution explained.