In an interview with a German daily Borsen-Zeitung, Mersch said that bitcoin's trading volume is currently "comparatively low" and is therefore not an issue for monetary policy at present.
He warned, however:
"What concerns me most, is when financial market infrastructures such as stock exchanges enter this business. That poses a major threat to financial stability."
He also argued that the "speculative hype" surrounding the digital currency is also a cause of concern with respect to investor safety. Although "individual investors are free to gamble," he said they should not complain to the ECB if they lose their funds.
Mersch's comments come a month after he stated that banks need to implement "instant payments" as soon as possible to provide an alternative to the innovation brought by bitcoin and other cryptocurrencies.
And, back in 2016, he stated that blockchain technology has the potential to disrupt card-based payments. Innovative card-based solutions have "the potential to further boost card usage by replacing cash payments," he said at the time.
Euro sign image via Shutterstock
