https://www.bleepingcomputer.com/news/security/x-hit-by-massive-cyberattack-amid-dark-storms-ddos-claims/

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.".