PANews December 28 news, the U.S. cryptocurrency lobbying group (Blockchain Association) tweeted that a lawsuit has been filed against the new 'broker' regulations issued by the IRS and the Treasury Department. The IRS and Treasury have exceeded their statutory authority by expanding the definition of 'broker' to include providers at the front end of DeFi transactions, even though they do not execute trades. This not only infringes on the privacy rights of individuals using decentralized technology but also pushes the entire thriving technology overseas.