The outfit filed a lawsuit against five individuals for operating four DDoS-for-hire (DDoS booter) services that were used to launch DDoS attacks on Rainbow Six Siege multiplayer servers.
Ubisoft noticed a sharp increase in DDoS attacks targeting its Rainbow Six Siege (R6S) game. The attacks started when a new game update resulted in a reset of the global player ranking.
R6S players discovered that they could cheat their way up the new ranking by launching DDoS attacks on current matches and forcing their opponents to disconnect -- earning unearned victories.
A week after the game's launch, Ubisoft announced a slew of countermeasures that included server upgrades, a wave of bans for players who were caught using DDoS attacks, but warned they planned to take legal action against DDoS-for-hire services that were facilitating the attacks.
At the time everyone laughed, and the plaintiffs often taunted official Ubisoft accounts about their ability to attack R6S servers and "repeatedly mocked Ubisoft's security efforts".
Ubisoft said its countermeasures yielded impressive results, with the company reporting a drop of 93 per cent in terms of DDoS attacks and delivered on the legal threats it made in September against the operators of DDoS-for-hire services.
The plaintiffs named in the lawsuit are Dennis Kruk (based in Germany), Maximilian Kuehl (Germany), Kelvin Uttih (Nigeria), an individual identified as B.R. (the Netherlands) and an individual identified only by their email address -- .
Ubisoft said the five managed four DDoS-for-hire services: SNG.one, r6ddos.com, r6s.support, and stressed-stresser-stressing-stressers.com earned "substantial revenue" by advertising their services to R6S players, offering DDoS-for-hire services for fees ranging from $11/month to $300 for lifetime access.
Ubisoft is now seeking the five charged and is also seeking financial relief for damages caused and costs incurred.