A small Canadian crypto exchange MapleChange twitted on Sunday that its servers have been hacked and customer funds in the amount of 913 Bitcoins ( 6 million USD) are lost. Some market analysts, however, question the credibility of MapleChange version of events and claim this to be an “exit scam”. “Due to a bug, some people have managed to withdraw all the funds from our exchange. We are in the process of a thorough investigation for this. We are extremely sorry that it has come to end like this. Until the investigation is over, we cannot refund anything”, MapleChange said on Twitter.