After testing out the TIWAZ Anti-Cheat client with Season 4's Semi-Finals and Finals for both the Main and Invite divisions, we have decided to implement the requirement of the AC client throughout all divisions. For this and future seasons, each player will be required to run the TIWAZ AC client before and during every match played. The client can be downloaded in the Files section of the site. Please read the readme.txt located in the TIWAZ zip file for complete installation and usage instructions.

For those who have downloaded TIWAZ previous to this news announcement, there has been an updated version released. As the old version will no longer work with an update being available, you will need to download the program from the files section again.

Taken From: http://www.caleague.com/?division=DoDS