The Dark Storm hacktivist group claims to be behind DDoS attacks causing multiple X worldwide outages on Monday, leading the company to enable DDoS protections from Cloudflare.

While X owner Elon Musk did not specifically state that DDoS attacks were behind the outages, he did confirm that it was caused by a “massive cyberattack.”

“There was (still is) a massive cyberattack against X,” Musk posted on X.