A number of Twitch streamers and moderators including popular personalities who play “League of Legends” are believed to have been hacked over the weekend, resulting in a number of crude and in some cases explicit content being shared across streams.

Victims of the hack included Tyler1—a popular video game streamer who just recently made a return to “League of Legends” after a nearly two-year ban—and moderators who were intended to police the chat to prevent any inappropriate material from being shared.

Sloppymayor, a moderator on Tyler1’s Twitch channel, confirmed on Reddit that his account was hacked. Prior to the confirmation, the title of Tyler1’s stream was changed by the Sloppymayor account to an offensive title that included sexually suggestive terms and racial slurs.

“I was hacked. This is all getting settled right now,” he wrote. He also told fans of the streamer that “Tyler won't get banned for this. He did say that “twitch just suspended my account which I'm appealing right now,” but insisted, “Tyler should be clean.”

Tyler reacted to the change of stream title that occurred while he was playing “League of Legends” but did not have his stream interrupted and did not have his account suspended over the incident despite it technically violating the terms of service for Twitch.

In its community guidelines, the streaming platform states that “any content or activity involving pornography, sexual intercourse, or adult services is prohibited,” and misinformation—including posting misleading titles for streams—is not allowed.

According to Sloppymayor, the issue stemmed from the lack of two-factor authentication on his account. Two-factor authentication requires a secondary code be entered every time a user attempts to login to an account. That code is typically sent to a secondary device like a smartphone that would be in the possession of the user.

Twitch’s two-factor authentication service is run through Authy, an app-based solution that provides short-term codes that are used to confirm a user’s identity. The service requires users provide their phone number to Twitch and have the Authy app installed on at least one device, be it a computer or smartphone.

According to Sloppymayor, all moderators for Tyler1’s stream have enabled two-factor authentication, though he admitted his was not enabled at the time. “I can't enable mine until twitch unsuspends my account,” he wrote.

Tyler1 was also reportedly not the only stream to be hit by the issue—though he was arguably the streamer with the biggest profile to be affected. Doublelift, another “League of Legends” streamer, also suffered from an attack after channel moderator Julia Lee reportedly had her account hacked.

Lee, like Sloppymayor, had her account banned as a result of the hack after it was used to change the stream title. According to the moderator , Twitch banned the account for “hate speech.”

Sloppymayor also claimed that a streamer going by IWillDominate as also affected by the hack. It is not clear if the efforts were in some way organized, though it would be quite the coincidence for three major streamers to be hit with similar hacks in such a small time frame.