The FBI has emailed potential victims of the now-defunct crypto exchange QuadrigaCX to inform them that its investigation is still ongoing, CoinDesk reports.
The U.S. government has been working with Canadian law enforcement on the case ever since its 30-year-old QuadrigaCX CEO, Gerald Cotton, passed away in Dec. 2018, leaving behind a multimillion-dollar shortfall, Fortune previously reported.
In June 2019, Ernst & Young, the professional services firm acting as QuadrigaCX’s bankruptcy trustee, claimed in a report that Cotton had allegedly stolen over 20,000 bitcoins from his customers.
In the latest email update, obtained by CoinDesk, FBI victim specialist Valerie Gauthier told the exchange’s former customers that the bureau was not revealing details of the investigation at this time.
“A criminal investigation can be a lengthy undertaking, and, for several reasons, we cannot tell you about its progress at its time,” she said.
Victims can access their case status through the U.S. Department of Justice’s new Victim Notification System while waiting for the investigation to yield further results.