Darker Shades

 is a secret achievement/trophy in Deus Ex: Human Revolution. It is earned by persuading Tong Si Hung to give you the location of the hacker, Arie van Bruggen.

Walkthrough
This achievement can only be attempted after searching the hacker's apartment but before confronting the hacker in person. You must enter The Hive through the front door and talk to the bartender upstairs. This will initiate a dialogue challenge which you must win to obtain the trophy