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Dota 2 tournament postponed due to online attacks

Samit Sarkar (he/him) is Polygon’s deputy managing editor. He has more than 15 years of experience covering video games, movies, television, and technology.

Officials for the G-1 Champions League, a prominent Chinese organization that runs Dota 2 tournaments, have postponed some rounds of their season 5 tournament due to a rash of distributed denial of service (DDoS) attacks, they announced yesterday.

The attacks came on Dota 2's European servers from "unknown sources," and "caused players to continuously disconnect and ultimately made it impossible to carry on the competition," said organizer 2P. They also disrupted the DreamHack Invitationals, another major tournament that also awards a significant amount of prize money.

"In light of the current situation, 17173 and have decided to postpone the G-1 Western Qualifiers while waiting for advice on technical solutions from Valve," said 2P.

The organizers are informing participants of ways to prevent DDoS attacks, and are working with Valve to determine the source of the attacks and figure out solutions.

"We are truly sorry about this decision for all of our fans and viewers at G-1," the organizers added. "We promise that the G-1 team will do our best to address the matter, and take any and all actions needed to ensure that G-1 Champions League Season 5 is back as soon as possible."