In recent years, online courses have become an indispensable teaching method. Many schools carry out teaching activities through conference software, live broadcast platforms, etc. The online violence represented by "online class explosion" has also begun to invade online classes, and many teachers and students are deeply disturbed by it. Some time ago, the news that the teacher of No. 3 Middle School in Xinzheng, Henan, died after being invaded caused widespread concern. This event pushed the word "online course explosion" to the public view. Recently, the Central Cyberspace Office issued the Notice on Practically Strengthening the Governance of Cyber Violence, proposing to "establish and improve the early warning and prevention mechanism of cyber violence, strengthen the protection of cyber violence parties, strictly prevent the spread of cyber violence information, and strictly punish according to law", aiming to effectively strengthen the governance of cyber violence, further compact the main responsibility of the website platform, improve the long-term working mechanism, and effectively protect the legitimate rights and interests of netizens, Maintain a civilized and healthy network environment. What is the "online class explosion"? Why does it appear in online classes? What measures should we take to stop the "online class explosion" and ensure the safety of online classes? The reporter carried out an interview on this point. In Nanmenwai Primary School, Saihan District, Hohhot City, Inner Mongolia, the teaching staff checked the recording of online classes in the monitoring room. Xinhua News Agency: 1. The incident that teachers in Xinzheng No. 3 Middle School were "blasted by online classes" who were disrupting the teaching order made many people wary, and teachers became the targets of online violence. According to the relative of the teacher of Xinzheng No. On the evening of October 28, when the online class was held, another unknown netizen broke into the live broadcast room of the online class and abused him, interfering with the courseware projection, forcing the teacher to quit the online class. Two days later, she was found dead at home, and the death certificate identified her as sudden death. At present, local public security, education and other departments are involved in the investigation. How is the "Online Course Blasting" implemented? The reporter found that a "online class explosion" often has several or even more than a dozen participants, which is not as simple as a "prank". At present, there is no clear definition of "online course blasting". According to the cases that have occurred, "online class explosion" is a malicious intrusion into the online classroom, disturbing the order of the online classroom. When the online class meeting number and password were leaked, some people systematically "invaded" the online class, and maliciously disrupted the teaching order by forcibly dominating the screen, brushing the screen to send harassment information, even abusing teachers and students, playing indecent videos, etc. These people who invade the classroom are called "blasters" on social media. Through social media, the "blasters" organized a series of "blasts", some of which came from students themselves, and some came from professional organizations that clearly marked prices. For the organized "blasting", the insider discloses the online class time and room number. After the special "organizer" issues the "blasting order", the participants gather for the "blasting" online class at a fixed time. According to existing reports, whether it is students with internal leaks or specialized "blasters", most of the participants in "online class blasting" are young students. According to the Research Report on the Use of the National Internet by Minors in 2021, the number of China's minors will reach