As noted elsewhere by a prominent author in the area [25], there is not a widely accepted or consistent definition of the term “bubble”. The GDASF test used here assumes a bubble is any time series interval which deviates from a random walk to become explosive.
Following the Chinese state’s move, countries like South Korea also pledged to tackle the rise in money laundering taking place via cryptocurrency, while the Metropolitan Police announced that it had successfully closed in on a huge UK cryptocurrency money-laundering operation.

Similar to forex — foreign exchange — trading, there can be significant risks involved with a largely unregulated market, and your best bet is to get informed beforehand, and don’t invest any money you can’t afford to lose. Regulators are still trying to figure out how to classify cryptocurrencies, for purposes of trading, payments, antifraud, taxation, and more. Clear regulation may help us understand how to use cryptocurrency and what its future may look like, but we aren’t there yet.
Vavilov said he had found an “immediate energy fit” with Brooks, who was acting chairman of the Office of the Comptroller of the Monetary Authority, a US banking regulator until January. He previously worked as Chief Legal Officer at the cryptocurrency exchange Coinbase.