So I was asked to give you guys some info on Blizzard since Black-Ops 4 will be released with them instead of steam. This is what I know....
Rules of Conduct..
https://us.battle.net/support/en/article/42673
Info on Warden, Blizzards Anti-Cheat...
http://wowwiki.wikia.com/wiki/Warden_(software)
Here is a part taken from the EULA...
A. WHEN RUNNING, THE GAME MAY MONITOR YOUR COMPUTER'S RANDOM ACCESS MEMORY (RAM) AND/OR CPU PROCESSES FOR UNAUTHORIZED THIRD PARTY PROGRAMS RUNNING CONCURRENTLY WITH WORLD OF WARCRAFT. AN “UNAUTHORIZED THIRD PARTY PROGRAM” AS USED HEREIN SHALL BE DEFINED AS ANY THIRD PARTY SOFTWARE THAT, WHEN USED SIMULTANEOUSLY OR IN CONNECTION WITH THE GAME, WOULD CONSTITUTE A VIOLATION OF SECTIONS 1, 2 OR 7. IN THE EVENT THAT THE GAME DETECTS AN UNAUTHORIZED THIRD PARTY PROGRAM, BLIZZARD MAY (a) COMMUNICATE INFORMATION BACK TO BLIZZARD, INCLUDING WITHOUT LIMITATION THE ACCOUNT NAME, DETAILS ABOUT THE UNAUTHORIZED THIRD PARTY PROGRAM DETECTED, AND THE TIME AND DATE THE UNAUTHORIZED THIRD PARTY PROGRAM WAS DETECTED; AND/OR (b) EXERCISE ANY OR ALL OF ITS RIGHTS UNDER ANY BLIZZARD AGREEMENT, WITH OR WITHOUT PRIOR NOTICE TO THE USER.
B. WHEN THE GAME IS RUNNING, BLIZZARD MAY OBTAIN CERTAIN IDENTIFICATION INFORMATION ABOUT YOUR COMPUTER, INCLUDING WITHOUT LIMITATION YOUR HARD DRIVES, CENTRAL PROCESSING UNIT, IP ADDRESS(ES) AND OPERATING SYSTEM(S), FOR PURPOSES OF IMPROVING THE GAME AND/OR THE SERVICE, AND TO POLICE AND ENFORCE THE PROVISIONS OF ANY BLIZZARD AGREEMENT.
C. Blizzard may, with or without notice to you, disclose your Internet Protocol (IP) address(es), personal information, chat logs, and other information about you and your activities: (a) in response to a request by law enforcement, a court order or other legal process; or (b) if Blizzard believes that doing so may protect your safety or the safety of others.
D. BLIZZARD MAY MONITOR, RECORD, REVIEW, MODIFY AND/OR DISCLOSE YOUR CHAT SESSIONS, WHETHER VOICE OR TEXT, WITHOUT NOTICE TO YOU, AND YOU HEREBY CONSENT TO SUCH MONITORING, RECORDING, REVIEW, MODIFICATION AND/OR DISCLOSURE. Additionally, you acknowledge that Blizzard is under no obligation to monitor your electronic communications, and you engage in those communications at your own risk.