U.S. financial regulators are wiping out ambiguities over cybersecurity standards and best practices, and lawyers say it’s not going to stop anytime soon.

Last month, the U.S. Securities and Exchange Commission (SEC) gave the go-ahead for the National Securities Clearing Corporation (NSCC) to enact a cybersecurity requirement for its 3,000 members. The NSCC provides clearing, settlement risk management, central counter-party services and a guarantee of completion for most broker-to-broker trades involving equities, corporate and municipal debt, exchange-traded funds and unit investment trusts.