Ubisoft is suing cheat provider MizuSoft, claiming that the company has sold "hundreds of thousands of dollars" worth of cheats for its tactical online shooter Rainbow Six Siege, forcing the developer to spend "enormous sums of money" attempting to remediate the damage.

As reported by Polygon, the lawsuit, which was filed on October 23 in California, alleges that MizuSoft operators are selling and servicing cheating programs that expand a player's field of vision, increase weapon damage, and reveal hidden enemies, among other game-ruining exploits. Ubisoft's legal proceedings are aimed at the company and its owner, a minor referred to only as J.V.L. in the lawsuit.

MizuSoft calls itself "a leading cheat provider focused on providing powerful but user-friendly software," with its website stating that it has a "clean detection record" and is "deadset on keeping cheat undetected" as a way to prevent player's accounts from being banned. The "Budget Edition Rainbow Six Siege Cheat" is sold on the website as a subscription for around $13 per day or $77 per month. Ubisoft claims the company has violated copyright and encourages players to breach its terms of use and code of conduct.

Ubisoft has been dealing with a slew of cheaters ever since Rainbow Six Siege launched back in 2015. In 2016, it updated the game's code of conduct, permanently banning first offenders found cheating or hacking. It later added new anti-cheating tech and saw it ban 3,800 cheaters on PC within the first week of being implemented. Ubisoft says MizuSoft's cheating software has been downloaded and used by players "thousands of times," earning the website thousands of dollars each month. The lawsuit alleges that this money has been funnelled through a payment processor linked to a web design firm called Simply San Webdesign, which is supposedly owned and operated by J.V.L.'s mother.

Ten other defendants are listed on the lawsuit, but Ubisoft only knows who the website owner is so the majority are being sued under their Discord names. Ubisoft also notes that J.V.L. "bragged to the media that his Cheating Software ruins R6S for other players," and the developer is asking the court for maximum damages equating to $25,000 per violation. At the time of writing, MizuSoft's website is no longer operational, simply displaying a message stating that it "will be ceasing operations as of October 24, 2019.