The Mystery Augs

SM03: The Mystery Augs is a side mission in Deus Ex: Mankind Divided. It is available for Adam Jensen to start during his first visit to Prague and spans over several visits to Prague. Unlike all other side missions in the game, this one does not have an achievement/trophy associated with it.

Confront Sarif in my Apartment
After you complete Getting in Top Shape Again, Adam will decide he needs to have a chat with David Sarif to see where the mystery augs came from, so make your way back to Adam's apartment and use the remote control to call him up (assuming you already talked to him before you went to see Koller, otherwise you may need to open the blinds in the bedroom to get David's number). David is adamant that he never had hidden augs put into Adam, and when Adam reveals the neodymium shield, David recognizes it as a TITAN aug developed by someone Megan Reed and himself once interviewed, Vadim Orlov, but turned him away because Orlov did not like people questioning his choices. David will then take it upon himself to track down Orlov and says he will contact Adam once he has found more information.

Investigate the Scientist's Apartment
Shortly after Adam gets back from Golem City, Sarif will contact him, saying he has tracked down Orlov to Prague, and odder still, has been visiting the city for the past 6 months, the same amount of time Adam has been living and working there. Not believing this is a coincidence, Sarif gives Adam the scientist's address, an apartment near Task Force 29's office. Make your way into the alley between Praha Dovoz and Rose's Garden and you will see it, half hidden behind the tree in the courtyard. Climb on top of the storage units whichever way you see fit and walk along the jutting part of the blue building to reach the apartment. Inside you will find a dead body that Adam recognizes as a Dr. McFadden who was at the Alaska facility, but must actually be Orlov. Look around the room some more, then use the code 3608 on the level 5 safe to find a file on Adam within. Also, on Orlov's body, is a TYM Vault Keycard, which can be used to access their vault at Palisade Property Bank.