https://www.cnet.com/news/star-trek-discovery-spinoff-to-star-michelle-yeoh-in-black-ops-role/

Michelle Yeoh will take the lead in a Star Trek: Discovery spinoff that delves into the secretive realm of Starfleet's Section 31. 

Section 31 acts as an autonomous shadow group within Starfleet, supposedly working to protect the Federation's interests. It has either appeared in or been mentioned in Deep Space Nine, Enterprise, Discovery and the reboot movie Star Trek Into Darkness.