The Secretary of State, Michael R. Pompeo, has reviewed evidence and worked with the Attorney General and the Secretary of the Treasury to determine that Harakat Sawa'd Misr and its aliases meet the criteria of a foreign terrorist organization under U.S. law. This decision means that Harakat Sawa'd Misr and its various names are officially designated as a foreign terrorist organization according to section 219 of the Immigration and Nationality Act. This designation will be published in the Federal Register.
Simple Explanation
The U.S. government has officially labeled a group called Harakat Sawa'd Misr as dangerous, like a bad guys club, so they can take special action against them, but they didn't explain all the reasons or what might happen next.