https://www.polygon.com/2017/10/25/16544760/destiny-2-pc-bans-third-party-software

Destiny 2 finally launched on Windows PC yesterday, and there’s already a controversy surrounding that version of the game: Dozens of people are finding that they’ve been banned from playing, and they don’t know why.

The initial culprit was thought to be the use of third-party software that interacts with the Destiny 2 game client by inserting code into it, which Bungie explicitly forbids. The studio explained earlier this year that this draconian policy is intended to maintain the security of the PC version, and to prevent players from hacking or cheating. “We [...] believe that this is a necessary measure in bringing you a great gaming experience in Destiny 2 on PC,” said Bungie.