快手：已报警！

Group 1 - The core issue is that Kuaishou faced a significant attack from gray and black market entities, leading to the appearance of inappropriate content in live streams on December 22 [1] - Numerous users reported the presence of explicit content in Kuaishou's live streaming rooms, with some streams attracting thousands of viewers [1] - Kuaishou has acknowledged the attack, stating that they are actively addressing the situation and have reported the incident to relevant authorities, including the police [1]