On November 5, the article "Online Course Explosion", which was published by the Rule of Law Daily, was so filthy that it could not be suspected of committing crimes. The reporter's undercover "Online Course Intrusion" group carried out an investigation, which caused a heated discussion. On the same day, it ranked first in the microblog hot search list, which was followed up by many media. Most netizens believe that "online class explosion" seriously disturbs the teaching order, insults teachers and students, playing indecent videos and other acts are suspected of being illegal and should be severely punished; A few netizens also suggested that the online class was invaded and the troublemakers would be expelled. There was no need to make a mountain out of a molehill. According to the investigation conducted by the reporter of the Rule of Law Daily, "online class explosion" is different from the traditional network security incidents. The reason for online class intrusion is often not the security problem of online class system, but the disclosure of online class meeting number and password by online class participants. Some people who participated in the "online blasting" claimed that they did not charge for it, but just "made fun of it". Li Ming, the parent of the first graders in Binzhou, Shandong Province, told the reporter that, His children almost became "online class intruders": "Now many minors like to play with sticks. Sometimes they don't know what the consequences will be, but they just think it's fun. Not long ago, the child and several classmates discussed with each other to do some mischief such as making bullet screens and pictures during online classes, but I found out. I told him what was at stake, and also reported it to the teacher. The teacher also held a class meeting to make the students aware of the dangers of 'online class explosion'." Sun Chao, a lawyer from Beijing Yinghe Law Firm, believes that the "online class explosion" is not a simple prank. The spread of some abusive, violent videos, pornographic information and other harmful information will have a huge impact on the psychology of teachers and students. Some teachers will feel guilty because they did not stop the "explosion" in time. Some students may imitate such behavior to further disrupt classroom discipline, or even bully others Fostering campus violence, etc. "Online class intrusion and its derivatives may violate the Public Security Administration Punishment Law, and those with serious circumstances are suspected of causing trouble." Sun Chao said. In order to rectify the chaos of "online course explosion", relevant national departments, schools and some Internet enterprises have taken action. Recently, the Central Cyberspace Office issued the Notice on Practically Strengthening the Governance of Cyber Violence, requiring the website platform to establish and improve emergency protection functions according to its own characteristics, and provide settings such as one click closure of strangers' private messages, comments, forwarding and @ messages; For accounts that publish online violence information for the first time, frequently or instigately, take measures such as closing accounts according to laws and regulations. If the circumstances are especially serious, it is prohibited to register new accounts throughout the network; Strictly deal with malicious marketing hype and other acts through online violence. Many Internet enterprises have also developed corresponding functions for various mainstream audio and video conferencing software to help ensure the safety of online classes. On November 6, the reporter tested several common conference software and found that the current preventive and deterrent measures against online course intruders were relatively complete. For example, before the meeting, the moderator can set the meeting password and open the waiting room to prevent others from entering the classroom by mistake, and can turn off "allowing members to join the meeting before the moderator enters the meeting" as needed, and can also let only friends or group members invited by the meeting booker join the meeting, the meeting chain