State and provincial regulators in the United States and Canada say that over the past few weeks they have made a wide blow to the first generation of tokens, with nearly 70 public investigations and 35 unresolved or completed enforcement actions. Regulators say they have tracked dozens of ICO transactions as part of the OperationCryptosweep coordinated action plan. In recent months, with the popularity of ICO, it has become a popular tool for crooks to raise funds from uninformed investors.