What Is an SDGT?
SDGT explained - the designation that covers terrorist entities.
TL;DR
TL;DR: SDGT stands for Specially Designated Global Terrorist - a designation under Executive Order 13224 for terrorists and terrorist organizations. SDGT entities and their associated addresses are blocked.
The designation
EO 13224 (signed 2001) authorizes designating terrorists and their supporters. Hamas, ISIL, al-Qaida, and Hezbollah are SDGT entities - their financial networks, including crypto fundraising, are in scope.
The screening
SDGT entities and addresses are on the SDN list - the same list the screen checks. A payment to an SDGT-linked wallet is prohibited.