The US Securities and Exchange Commission said today that the offering and sale of digital tokens “are subject to the requirements of the federal securities law.”

The agency, in its statement, revealed that it had been investigating the issuance of tokens connected to The DAO, the ethereum-based funding vehicle that collapsed dramatically last summer following an exploit of a flaw in its code.

Per the SEC, those “DAO tokens” constitute securities, though the agency said that it was not going to pursue any charges in connection with the project, but is releasing its finding “to caution the industry and market participants.”

The agency said:

“…the Commission deems it appropriate and in the public interest to issue this Report in order to stress that the U.S. federal securities law may apply to various activities, including distributed ledger technology, depending on the particular facts and circumstances, without regard to the form of the organization or technology used to effectuate a particular offer or sale.”

Stephanie Avakian, co-director of the SEC’s Enforcement Division, added in a statement:

“The innovative technology behind these virtual transactions does not exempt securities offerings and trading platforms from the regulatory framework designed to protect investors and the integrity of the markets.”

In tandem with the DAO report, the SEC published an investor bulletin about initial coin offerings, or ICOs. Among the items included was a warning about the risks of fraud for those who opt to participate.