The State Department has designated Fuad Ahmad Nuri Ali al-Shakan, also known by several other names, as a Specially Designated Global Terrorist under Executive Order 13224. This designation identifies him as a leader of the al-Qa'ida Kurdish Battalions, whose assets are subject to blocking. The decision was made to prevent providing prior notice to certain individuals due to concerns that it could undermine the effectiveness of the blocking measures. This notice was issued by Michael R. Pompeo and will be published in the Federal Register.
Simple Explanation
The State Department said that a man named Fuad Ahmad Nuri Ali al-Shakan is a big problem because he helps lead a bad group, so they decided to block all his money. They didn't tell him ahead of time so he wouldn't move the money before it gets blocked.