You wouldn’t know it from visiting the company’s main website, but General Bytes, a Czech company that sells Bitcoin ATMs, is urging its users to patch a critical money-draining bug in its server software.

The company claims worldwide sales of more than 13,000 ATMs, which retail for $5000 and up, depending on features and looks.

Not all countries have taken kindly to cryptocurrency ATMs – the UK regulator, for example, warned in March 2022 that none of the ATMs operating in the country at the time were officially registered, and said that it would be “contacting the operators instructing that the machines be shut down”.

We went to check on our local crypto ATM at the time, and found it displaying a “Terminal offline” message. (The device has since been removed from the shopping centre where it was installed.)

Nevertheless, General Bytes says it serves customers in more than 140 countries, and its global map of ATM locations shows a presence on every continent except Antarctica.