At 6:30 a.m., Xiao Yang was woken up by the vibration of his mobile phone at the bedside.

Pick up the phone and look at it, only to see a text message on the screen: "All posts have been deleted, including photos downloaded to personal computers."

In addition, there is an IP address attached to the text message, which reads: "This address is a gift of Internet Cafe IP, from which the poster sends photos to the forum."

Xiao Yang couldn't help falling asleep when he saw the content of the text message. He climbed up and looked at the information on his mobile phone and thought about what to...