According to PANews, the US Securities and Exchange Commission (SEC) is taking legal action to classify Ethereum as a security. This action involves issuing subpoenas to US companies, requiring them to provide all documents and financial records related to the Ethereum Foundation. The investigation began in September 2022 when the Ethereum blockchain transitioned to a new governance model called 'Proof of Stake'. Although the SEC has not commented on the matter, this move appears to be a significant review of the Switzerland-based Ethereum Foundation. This action could have far-reaching implications for the cryptocurrency industry, particularly in discussions about whether crypto assets are considered securities.