A London investment firm gave out a list of the participants, including names and employers, to those in the chat room, revealing the identities of almost a thousand Bloomberg terminal users who were taking part in an anonymous chat room.
A portion of a chat transcript from August 1 was also included in the hack and provided enough information to link actual people to anonymous talks.
Source: https://nypost.com/2017/08/04/data-breach-unmasks-bloomberg-terminal-chat-room-users/
"id": "BLO183081122",
"linkid": "bloomberg-lp",
"type": "Data Leak",
"date": "08/2017",
"severity": "50",
"impact": "2",
"explanation": "Attack limited on finance or reputation"