On this day, after Li Xuan walked into the office, the office was so quiet that it could be heard. For a moment, the teacher's eyes were all facing Li Xuan.

Li Xuan is a regular customer in the office. The teacher and Li Xuan are very familiar with him. They understand the difficulty of the CMO test questions and admire Li Xuan who can produce the CMO test questions. He heard that Li Xuan and Xu Ming met, so he was speechless.

During this exam, Xu Ming first thought that Li Xuan had a problem. The main reason was that Li Xuan had made too abnormal progress in recent months and he also forgot mathematics, but it was strange that other subjects, especially Chinese and English, had such a speed.

Because it is not as good as mathematics, Chinese and English are the most difficult subjects to improve. Li Xuan has been promoted to the top of the year in a short time. This is unreasonable and cheating is the best explanation.

Then Li Xuan's math competition scores also improved a bit scaryly, and the basic method of progress was no longer concerned.

This is an idea that normal students will have, not deliberately target Li Xuan, so some students follow Xu Ming and doubt it. Of course, not all students doubt it. Students who have contacted Li Xuan believe in Li Xuan.

Xu Ming suspected that Li Xuan cheated in the school exam, and even suspected that Li Xuan cheated in the competition. It is certainly possible that Li Xuan has a background.

Some people may think that cheating cannot occur in national competitions is too presumptuous and do not understand the divine paths in it.

There have been examples of cheating in the National League before, such as knowing the competition questions in advance, hacking some experts, and getting into the provincial team, which is still available in recent years. After all, winning awards means you can participate in independent enrollment, which is very profitable, and everything is easy to say if you have money and power.

It can be said that when the national coaches look at it, they can be considered completely innocent. Therefore, the policy has been reformed now, and Tsinghua University is only recommended to the training team, and not to the provincial first and provincial teams, because they are afraid of accepting some students who rely on relationships. In addition, supervision has been stricter in recent years, and there are relatively few shady stories.

Simply put, the National League also has a shady scene, not to mention that it is just a cup competition, and it is possible to get a gold medal if it is related. Competition is a game played by great gods and rich people. The larger the game, the more transparent it is, and it will not be faked when it comes to imo.

The college entrance examination may be the fairest exam many people have ever experienced in their lives.

Not to mention students, I have never seen Li Xuan’s perverted self-study ability, and the teacher does not believe that Li Xuan’s progress can be so exaggerated. In the eyes of ordinary people, students who were able to take the exam for Tsinghua and Peking University in the past have high IQ, but compared with Li Xuan, they have become slacks. In less than half a semester, Li Xuan can take into account both math competitions and other subjects, especially English and Chinese, and achieve the best grade in the year.

In fact, as a reborn person, Li Xuan has a lot of knowledge in his brain for no reason, and it is indeed not an exaggeration to say that he is cheating.

Of course, if students knew Li Xuan's performance in the Chaoyang Cup winter camp training, they might not have doubted Li Xuan. But because Li Xuan won the first place in the country in the test and had no certificates, they did not praise the principal in the whole school like last time, and made a big fuss and spread it only on a small scale, and it was not well known to the school.

So Li Xuan didn't care.

In fact, the teacher also joked about Xu Ming's words. It depends on relationships to cheat in the competition, but Li Xuan has nothing to do behind it. Naturally, he would not do such a weird thing as doubting the students.

The problem in school is now that the question is leaking, mainly in the teacher's investigation. Because only the teacher's circle knows the test paper, the problem must be with the teacher's side.

When Li Xuan entered the door, he saw the teachers smiling at him, his eyes full of encouragement.

Li Xuan smiled, then slowly walked to Teacher Zhao Dongming: "Teacher, Xu Ming's words, I'm helpless. You must know that you didn't buy leaked test questions."

Zhao Dongming stood up, patted Li Xuan on the shoulder, and smiled and said, "Nonsense, how powerful are you, the teacher doesn't know? Don't care, only the smallest students doubt you, most of the students still support you, and those who doubt you only show that your IQ is beyond the scope they can understand."

Li Xuan asked: "Teacher, hasn't the reason why the test questions were leaked yet?"

Zhao Dongming shook his head and looked at the teacher in the office: "Our teachers promised that they did not leak the test questions. To be honest, it is really hard for me to believe that the teacher will leak the questions."

"By the way, what subjects have the teacher been leaked this time?"

“All subjects.”

"All? That teacher, has the Penguin number selling the test questions been found?"

"I found it, but the Penguin account that sold the test questions did not reply to the message, and it has not been online now. I guess the account has been abandoned, and the IP address is only in the Internet cafe."

Li Xuan nodded and found that this matter was a bit tricky and it was difficult to track down.

When tracking the Penguin account, you can only track the IP location where you are located, and the specific address cannot be found. This kind of Penguin account is used to sell test questions, and it should not be registered with real information. It is probably just a temporary small account.

Li Xuan pondered for a moment, "Teacher, I want to ask, how did you keep your test papers from the time they were released to the exam?"

Zhao Dongming said: "The teachers in our teaching and research department will set the questions together and send an email to summarize the team leader. Only the teacher can log in to download them. However, our teacher will record the test papers when downloading them. I didn't find any teacher downloaded them privately. Of course, it is possible that the person who leaked the questions just read the test papers in the email, so it is difficult to investigate."

"Teacher, is there a possibility that the school China Unicom server was hacked?"

Zhao Dongming was stunned for a moment, "Are you talking about hacking?"

Li Xuan nodded, "I think it's because the school server was quietly hacked, the administrator's password was cracked, and the test paper in your email was seen by others."

In his previous life, he was unfortunately a coder. He wanted to go to the Academic Affairs Office to change grades, but he could do it without fear of breaking the law. Of course, as the overall computer level improves, it is becoming more and more difficult, and many schools have upgraded security systems. However, if it is just a general high school and the level of teachers in confidential rooms is average, it is still very easy to hack the school server. There is no need for first-class hackers, and third-rate.

Zhao Dongming felt thoughtful and frowned slightly.

Li Xuan explained: "Teacher, you may not know that it is actually not difficult to hack into our school server. You can do it by thinking about it. You can borrow it for me by borrowing it from the computer."

"What should I do?" Zhao Dongming was stunned for a moment, wanting to see Li Xuan operate.

The office teachers also heard Li Xuan's words and came to Li Xuan curiously to watch. The atmosphere seemed very quiet. Lin Xuerui also came over and watched Li Xuan take action with fun.

Li Xuan picked up the mouse and opened the campus network: "Our school uses two servers, and then two local area networks are connected. There is a firewall outside. The method used is the domain management method. If this domain management password is cracked, you can enter the school server and see all information."

Zhao Dongming couldn't react and couldn't help but say, "Li Xuan, do you still know information technology?"

"I have read a little extracurricular book and know a little bit of fur." ​​Li Xuan smiled, opened the campus network login web page, and operated it on the mouse and keyboard. "Find the campus network login authentication url, teacher, look, after logging in, all the url parameters here are encrypted into a string of ciphertexts. Look carefully, there are no restricted ports, and there are many open ports. If there is no filtering vulnerabilities, you may be able to break through with a universal password. In addition, you can also break the library to obtain administrator passwords, and there are many ways to crack it."

"Is this very simple?" Zhao Dongming was a little confused.

"There are a lot of loopholes in the school, and it looks easy to crack. If I ask you to come, it will be cracked in a few days at most." Li Xuan smiled, "Teacher, I suggest you go to the school confidential room and ask the administrator to go to the server file and read the historical commands frequently. You can find what the intruder did on the server and follow the clues to find the intruder's IP address. I think the process of intruder's server will not be completed in the Internet cafe."
Chapter completed!