He held the cup deeply and squinted his eyes: "It seems that this Long Xuejun is really interesting."

Fu Hong smiled bitterly: "If there is really something wrong with his brain, then we will all become fools!"

He pointed at Fu Hong in a deep voice: "If you say yourself, just say yourself, don't bring us in." As he said that, he turned his head and looked at Wang Lu: "Do you think this Long Xuejun is suspicious?"

Wang Lu shook her head. She said that she had not seen Long Xuejun herself and could not make such a judgment. Although it seems that Long Xuejun was extremely occasional at the scene when the first two deceased had a dispute with Du Zhongping, it is not ruled out that inevitable possibility. Moreover, it is not clear whether he was present at the time when the third deceased had a dispute with Du Zhongping. After all, the place where Du Zhongping and Liao Zhe had a dispute was in Liao Zhe's waste purchase station, which was not a range that the "Sky Eye" could monitor.

"Is there any monitoring in Liao Zhe's scrap purchase station? However, the monitoring data at that time had been deleted and could not be recovered. It only works on a hard drive and is recycled. The monitoring of the scrap purchase station can only be found within 72 hours. Although the app they used was provided with cloud backup services, it would cost money, so this feature was not enabled."

After hearing Fu Hong's words, Chen Chen seemed to be talking to himself: "In other words, wherever Du Zhongping had conflicts with the deceased, there was a surveillance record. Even when he and Liao Zhe were quarreling, although only Liao Zhe and Liao Zhe were the only ones who were Liao Zhe and Liao Zhe, it is not ruled out that there would be a pair of eyes staring at him!"

Wang Lu looked at Chen Chen, she was confused and didn't quite understand what Chen Chen meant.

Fu Hong was also confused.

Chen Chen then looked at the two of them: "If, I mean, if our inference was correct at that time, and Du Zhongping had a conflict with the three dead, then through Du Zhongping's description, when he had a dispute with Liao Zhe, they were the only two of them. Even Liao Zhe's mother only heard what Liao Zhe said later, which was obviously contrary to our inference. But if the murderer was not at the scene, but through surveillance, would it be understandable?"

Fu Hong widened his eyes: "Isn't it possible? In addition to having a dispute with Huo Weibing, Du Zhongping was photographed by Tianyan on the street, and having a dispute with the second deceased was in the sales department of the real estate company. The dispute with the third deceased was in the scrap purchase station of the other person. Although these two places are also surveillance, it is in the other person's own local area network, which means that the three surveillance belong to three different network systems. How could the murderer see all this through surveillance?"

He said quietly: "There is nothing impossible, don't forget, a case reported by the Internet surveillance before, that criminal suspect invaded the computer systems of several major banks and modified the deposit balance of nearly one million depositors."

"Did you say the murderer is probably a hacker?" Fu Hong still felt a little incredible.

Chen Chen was not sure: "I just said an assumption. We handled cases just to boldly assume it. Are you careful to verify it? As for whether you have to check it out yourself. Take the monitoring of the scrap purchase station for example. You also said that it is a system generated by the app. You can contact the company that makes this app to see if they can find traces of their system being invaded during that time period. Although I don't understand the Internet very much, I believe that as long as the murderer really uses that app to achieve timely monitoring of Du Zhongping, clues will definitely be left behind. Similarly, the same is true for the sales department of the real estate company."

Fu Hong responded. He had been staying on the Internet Security before. After thinking about it carefully, this hypothesis is not impossible. It was just that he didn't dare to think about it in this way before.

"By the way, don't let someone stare at Long Xuejun anymore. Just ask someone to go to the mental hospital to learn about his situation."

Fu Hong nodded, but looked embarrassed: "There are some of the people I have on my hands now."

Looking at him deeply, Fu Hong said with a bitter face: "Didn't the meat seller in the Hongbianmen Vegetable Market have had an argument with Du Zhongping? You also said that the murderer might attack him and asked me to send someone to stare. Today, Du Zhongping got into Kan Laoliu of Touqiao again. Both sides almost played a full martial arts move on the Touqiao. Even Long Xuejun said that the murderer Kan Laoliu and the Yellow Hair might become the next target of the murderer. There is no way, I can only let someone stare at him again. Head, Du Zhongping will have conflicts or conflicts with people almost every three days. If this continues, I really have no one to send me."

Chenchen knew that Fu Hong was talking about the truth. If the murderer was really as they thought, and anyone who had conflicts with Du Zhongping would become his target, then Zheng Tu and Kan Laoliu would be in danger of their lives, so Fu Hong had to make someone stare at him.

Wang Lu coughed lightly: "At present, we are only speculating that Du Zhongping is a reference for the murderer's crime, but it's not really like this, we can't be sure. In fact, we are also waiting for the murderer to take action again. If the meat seller and the gangster are really his target, it will be a good thing for us, at least it confirms that our inference is correct and our investigation direction is not wrong."

Fu Hong was about to leave, but he cried to him: "In this way, you go and check which app the monitoring system used in the Jinghu Villa Sales Department and Liao Zhe's scrap purchase station are used. I'll go to the big data center to see it. It seems that they are responsible for the installation and maintenance of our Sky Eye system. Let's hear what they say."

After leaving the office, Chen Chen and Wang Lu drove to the big data center.

The person in charge of the Big Data Center is Tao Xin. She is a woman in her early thirties. She is beautiful and has a temperament. I heard that she is a top student at a prestigious university in East China and a doctor of computer science.

"The Sky Eye System has a special maintenance team, which is responsible for the daily maintenance of the system, including the debugging, maintenance of equipment, software upgrades and updates. Of course, according to your requirements, data backup and archive, classification and destruction of data materials will also be carried out."

Tao Xin said while taking Chenchen and Wang Lu to a large office. The entire wall of the office was filled with display screens, and then there was a large workbench with four and five staff members sitting in front of the workbench.

"Song Qian, come here."

Hearing Tao Xin call him, Song Qian stood up from the work station and walked towards them.

"Song Qian, this is the sinking team of the Criminal Police Brigade. He wants to know some of the situations about the Sky Eye System. You are the person in charge of the maintenance team. Please introduce the specific situation."

After saying that, Tao Xin said to Chen Chen: "Captain Chen, there is an important network security conference on the Internet Information Network. I have to take a step forward. If you have any questions, you can ask him."

She apologized to Wang Lu again, then turned around and left.

"Captain Shen, I don't know what aspect you want to know?" Song Qian asked with a smile.

Chenchen asked: "I want to understand the security issues of the Sky Eye system."

Song Qian was stunned for a moment, he didn't quite understand the meaning of depression.

Chen Chen said: "Simply put, is it possible that the Sky Eye System will be invaded?"

"This is definitely impossible. Although the firewall will be attacked from time to time, it will not cause any substantial impact. We are a professional team, and we all know the importance of Tianyan to Lincheng's public safety, so we will not let it have any problems."

As he said that, he took Chenchen and Wang Lu to each workbench and introduced them to the responsibilities of each position.

"His name is Ding Xiaoman, who is responsible for monitoring data collection, backup and classification. We do not just store all the data in data backup. For example, a picture that is in a static state for half an hour or even longer is in a state of static. Then we will edit it after the collection and only retain five minutes of monitoring time. However, we will notes on the picture on the picture, from about when the total period starts to when it ends, so that the picture has always maintained such a state during this period. This is easy to view, but we have also done a backup of the entire data and retained the most original records."

I looked at Ding Xiaoman deeply. This was a twenty-eight-nine-year-old man, but he was very shy. When facing Chen Chen and Wang Lu, he seemed a little embarrassed.

Chenchen reached out his hand, and he wiped his hand hard on his clothes before shook hands with Shen Chen. The corners of his mouth moved, but he couldn't say anything.

Song Qian smiled and said, "Xiaoman is a technical mate. He has nothing to say about business, but he just doesn't communicate with others. He has almost no other hobbies except computers. He is still single. He is not in a hurry. We are all anxious for him. He introduced several girls to him. Who knew that he couldn't say three words in one night when he dated someone, and in the end he was out of luck."

Chenchen smiled, he knew that all technical mates were like this.

Then Song Qian introduced another: "Xu Weishan is mainly responsible for installation, maintenance and debugging. His job is to determine which camera has loosened or the angle has changed through the surveillance screen. Although he is not very eye-catching, he is also very powerful. He knows the location of all cameras in the city of Lin, including the angle, perspective, etc. of the camera."

Wang Lu glanced at Chen Chen, and Chen Chen smiled at Xu Weishan. The two shook hands and said Chen Chen: "You shouldn't be thirty years old, right?"

Xu Weishan replied: "Twenty-nine, it will be thirty in two months."

"Has you started a family?"

"Other children can make soy sauce." Song Qian teased on the side, and Xu Weishan said: "I got married early and got married at 22. The child is nine years old this year and is in the third grade of elementary school."

Next, Song Qian focused on introducing Fan Ye, an engineer in charge of the network security of the Sky Eye system. A man in his forties, wearing a pair of black-framed glasses, the lenses were as thick as the bottom of a beer bottle. He didn't say much. He answered questions very professionally when asked by him. He heard Chen Chen and Wang Lu looked confused. Then they found that Fan Ye looked at them with contempt.

After the introduction, Song Qian asked the two to go to the small reception room next door and poured them tea.

"Team Leader Song, I want to ask you a question." Chenchen took out a cigarette and handed it over. Song Qian waved his hand: "I don't smoke, you know that smoking is not allowed in a working environment like ours."

He was embarrassed to ignite this, so he put away the cigarette: "Now many stores and supermarkets have their own monitoring systems. It shouldn't be difficult to invade these monitoring systems, right?"

Although Song Qian didn't know why Chenchen asked this, he replied: "If the network environment where these systems are located is open, it is not difficult to invade such a system."

Wang Lu asked what it is, and Song Qian replied: "It is that their LAN is connected to the Internet. If the LAN is disconnected from the Internet, it will take some effort to intrude. However, as far as I know, most of these LANs are open, especially if their monitoring requires certain apps, they must be connected to the Internet to be used. For example, monitoring apps such as Tianyiguan Home, My Life, etc., some functions cannot work properly without accessing the Internet. Once connected to the Internet, you will definitely be able to find the path to ingress."
Chapter completed!