On Friday, February 9, 2018, Italian cryptocurrency exchange BitGrail announced that “internal checks revealed unauthorized transactions which led to a 17 million Nano [XRB] shortfall, an amount forming part of the wallet managed by BitGrail.” The shortfall when reported was allegedly worth $170 million and has presumably rendered BitGrail insolvent, despite the fact that the other wallets and currencies that the exchange has were purportedly untouched.
The 9:30 p.m. UTC announcement by the Florence-based exchange gives some cause for circumspection. The founder of the exchange, Francesco “The Bomber” Firano, fired off salvos on Twitter in defense of the loss. His defense rang hollow for BitGrail customers, however, as Firano had noted the problem a day prior but withheld disclosure to authorities, users and the public while trying to work through the issue with the Nano team.
When news of the lost coins broke, BitGrail released a statement citing “unauthorized transactions” that were later confirmed by Firano to be the result of a hack. However, it appears many users have taken to Twitter to accuse Firano and BitGrail of committing fraud, with some positing that withdrawals have been severely limited on the exchange for months across multiple coins while transaction fees had increased. The coins lost represent approximately 14 percent of the total outstanding value of Nano mined.
However, there is some dispute (discussed below) on what actually caused the loss of coins. Whether it was an error in the BitGrail system, a planned exit scam or a hack from outsiders, taking or keeping the ill-gotten tokens seems ill-advised. The percentage of coins taken represents five times the current daily trading volume of Nano and would require careful offloading to avoid driving the price down by selling the coins.
Any scenario in which those lost coins could be dumped prior to the Nano coin gaining greater stability and trading volume forecasts a tumultuous time for the Nano team.
The Nano coin, previously known as RaiBlocks, is