On March 21, 2023, the U.S. Securities and Exchange Commission (SEC) held its first roundtable on cryptocurrency asset regulation, focusing on "Defining Securities Attributes," aimed at clarifying the regulatory path for cryptocurrency assets. The meeting attracted participation from academia, regulatory agencies, venture capital, and policy advocates, and was chaired by former SEC Commissioner Troy Paredes. During the meeting, former SEC Cyber Enforcement Office Director John Reed Stark strongly opposed amending existing securities regulations to accommodate cryptocurrency assets, arguing that digital assets should be viewed as securities, and emphasized that the SEC's mission is to protect investors. This meeting marks further exploration by the SEC in the realm of cryptocurrency regulation and may provide important references for future policy-making.