Alberta, Canada-based small time cryptocurrency exchange MapleChange, is claiming to have been hacked, and has since disappeared from the face of the internet, leaving investors fearing the worst.

Out of the blue, MapleChange revealed via their official Twitter accounts with 2,000 followers that hackers we able to exploit a bug that allowed them to withdraw “all” of the exchange’s funds and that they have “no more funds to pay anyone back.” The initial tweet that has since been deleted reads:

“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 is has to come to end like this. Until the investigation is over, we cannot refund anything.”

Within an hour of posting the initial message, MapleChange deleted the company’s Discord, and deleted the Twitter account used to alert its users of the “bug,” subsequent hack, and lack of funds. MapleChange – which says it operates “around the concept of community, fast customer experience, reliability” – took its website down as well, and has since ceased all communications with its rightfully upset customers.

MapleChange customers have taken to Reddit in lieu of the company’s official Twitter and Discord channels, to express their concerns. With MapleChange’s disappearing act, there’s no confirming if a hack did or didn’t occur. If there was a hack, MapleChange should be doing more to ease their customer’s concerns and is handling the situation terribly.

Regardless, the lack of information and communication, and the immediate deletion of social media accounts all appear to point to MapleChange pulling an exit scam on their user base.

While no investor should have their funds stolen, especially not from an exchange itself, the situation should serve as a wake-up call for investors who keep their assets stored on exchanges. Storing assets on an exchange leaves them open to hacks. The situation has worsened when the exchange is small, under-funded, and lacks the infrastructure and security needed to keep investors’ funds safe.