Excerpts from joint op-ed published in Wall Street Journal, Jan. 25, 2018.

Distributed ledger technology, or DLT, is the advancement that underpins an array of new financial products, including cryptocurrencies and digital payment services. Many have identified DLT as the next great driver of economic efficiency. Some have even compared it to productivity-driving innovations such as the steam engine and personal computer.

Our task, as market regulators, is to set and enforce rules that foster innovation while promoting market integrity and confidence. In recent months, we have seen a wide range of market participants, including retail investors, seeking to invest in DLT initiatives, including through cryptocurrencies and so-called ICOs—initial coin offerings. Experience tells us that while some market participants may make fortunes, the risks to all investors are high. Caution is merited.

A key issue before market regulators is whether our historic approach to the regulation of currency transactions is appropriate for the cryptocurrency markets. Check-cashing and money-transmission services that operate in the U.S. are primarily state-regulated. Many of the internet-based cryptocurrency trading platforms have registered as payment services and are not subject to direct oversight by the SEC or the CFTC. We would support policy efforts to revisit these frameworks and ensure they are effective and efficient for the digital era.

The CFTC and SEC, along with other federal and state regulators and criminal authorities, will continue to work together to bring transparency and integrity to these markets and, importantly, to deter and prosecute fraud and abuse. These markets are new, evolving and international. As such they require us to be nimble and forward-looking; coordinated with our state, federal and international colleagues; and engaged with important stakeholders, including Congress.

Click here to read the entire op-ed.