Original sin

Shen Chen held the cup and squinted his eyes: "It seems that Long Xuejun is really interesting."

Fu Hong smiled wryly: "If there is something wrong with his brain, wouldn't we all be idiots!"

Shen Chen pointed at Fu Hong: "If you talk about yourself, talk about yourself, don't bring us in." Then he turned to look at Wang Lu: "Do you think this Long Xuejun is suspicious?"

Wang Lu shook her head. She said that she hadn't seen Long Xuejun himself, so she couldn't make such a judgment. Although it seems that Long Xuejun was at the scene when the first two deceased had a dispute with Du Zhongping, it was extremely accidental. But the inevitable possibility is not ruled out.Besides, I don't know if he was also present 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 collection station, not the "Eye of the Sky" range that can be monitored.

"Liao Zhe's waste collection station is monitored by Andy, but the monitoring data at that time has been deleted long ago and cannot be recovered. It only works there with a hard disk, which can be recycled, and the monitoring of the waste collection station can query it. Only within 72 hours, although the app they use has a cloud backup service, but it costs money, so this function was not enabled.”

After listening to Fu Hong, Shen Shen seemed to be talking to himself: "That is to say, there are surveillance records where Du Zhongping had conflicts with the deceased, even when he and Liao Zhe were arguing, although only Liao Zhe Two people with Liao Zhe, but it does not rule out that there will be a pair of eyes watching!"

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

Fu Hong was also dumbfounded.

Only then did Shen Chen look at the two of them: "If, I mean, if our deduction was correct and the murderer was at the scene when Du Zhongping had a conflict with the three deceased, then according to Du Zhongping's description, when he had a dispute with Liao Zhe Only the two of them were there, and even Liao Zhe's mother only heard what Liao Zhe said afterwards, which obviously contradicted our inference, but if the murderer was not at the scene but saw all this through surveillance, would it be possible? Do you understand?"

Fu Hong's eyes widened: "Impossible? Apart from Du Zhongping's dispute with Huo Weibing, which was photographed by Tianyan on the street, the dispute with the second deceased was in the sales department of a real estate company. The dispute with the third deceased happened in someone else's waste collection station. Although these two places are also monitored, they are in his own local area network, which means that the three monitors belong to three different network systems. How could the murderer Is it possible to see all this through surveillance?"

Shen Shen said lightly: "Nothing is impossible, don't forget that in a case reported by the Internet Supervisor before, the suspect hacked into the computer systems of several major banks and modified the deposit balances of nearly a million depositors. .”

"You mean the murderer is probably a hacker?" Fu Hong still felt a little inconceivable.

Shen Chen was not sure: "I just made a hypothesis. Isn't our case a bold assumption and careful verification? As for whether it is up to you, Captain Fu, to check it yourself. Let's take the monitoring of the waste collection station as an example. Having said that, it is a system generated by an app. You can contact the company that made this app to see if you can find traces of their system being hacked during that time period. Although I don’t know much about the Internet, I believe that as long as If the murderer really uses that app to monitor Du Zhongping in real time, then there will definitely be clues left. The same is true for the sales department of the real estate company."

Fu Hong responded, he had also stayed with the Internet Security before, and Shen Shen's hypothesis was not impossible after careful consideration, but he hadn't dared to think about it before.

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

Fu Hong nodded, but with a troubled expression on his face: "Now I don't have enough people."

Looking at him deeply, Fu Hong said with a bitter face: "Didn't the butcher at the Hongbianmen vegetable market have a dispute with Du Zhongping before? You also said that the murderer might attack him, so let me send someone to watch him." On the other hand, Du Zhongping got into trouble with Kan Lao Liu of Touqiao again today, and the two sides almost played a martial arts game in Touqiao. Even that Long Xuejun said that the murderer Kan Lao Liu and that Huang Mao would probably become The next target of the murderer, I have no choice but to be watched again. Head, Du Zhongping will have conflicts or conflicts with people almost every three days, and if this continues, I really have no one to send."

Shen Chen knew that Fu Hong was telling the truth. If the murderer was as they thought, and anyone who had conflicts with Du Zhongping would be his target, then Zheng Tu and Kan Lao Liu might really be in danger. So Fu Hong had to be watched carefully.

Wang Lu coughed softly: "At the moment we are only speculating that Du Zhongping is a reference for the murderer to commit the crime, but it is not true, we are not sure yet. In fact, we are also waiting, waiting for the murderer to attack again. If that The butcher and that gangster are really his targets, and it’s a good thing for us, at least it proves that our inference is correct, and our investigation direction is not wrong.”

Fu Hong was about to leave, but Shen Chen stopped him: "Well, go and check which app is used by the sales department of Jinghu Mountain Villa and the monitoring system used by Liao Zhe's waste collection station. I'll go to the big data center to have a look. , it seems that they are responsible for the installation and maintenance of our sky eye system, listen to what they say."

After leaving the office, Shen 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 good temperament. I heard that she is a top student from a famous university in East China, with a doctorate in computer science.

"Tianyan system has a dedicated maintenance team. They are responsible for the daily maintenance of the system, including debugging and repairing equipment, as well as software upgrades and updates. Of course, according to your requirements, data backup and data storage will also be carried out. Archive classification and destruction work."

While talking, Tao Xin brought Shen Shen and Wang Lu into a large office. The entire wall of the office was covered with display screens, and there was a large workbench, with four or five staff members sitting in front of the workbench.

"Song Qian, come here."

Hearing Tao Xin calling him, Song Qian stood up from his desk and walked towards them.

"Song Qian, this is Captain Shen of the Criminal Police Brigade. He wants to know something about the Sky Eye system. You are the person in charge of the maintenance team. Please introduce the specific situation."

After Tao Xin finished speaking, he said to Shen Shen: "Team Shen, there is an important network security meeting over there at Netcom. I have to go first. You can ask him if you have any questions."

She gave Wang Lu another apologetic smile before turning around and leaving.

"Captain Shen, what kind of situation do you want to know?" Song Qian asked with a smile.

Shen Shen asked: "I want to know about the security of the Sky Eye system."

Song Qian was stunned for a moment, he didn't quite understand what Shen Shen meant.

Shen Shen said: "Simply put, is it possible for the Sky Eye system to be hacked?"

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

As he spoke, he took Shen Shen and Wang Lu to each workbench and introduced them to the responsibilities of each position.

"His name is Ding Xiaoman, and he is in charge of monitoring data collection, backup and classification. We don't just store all the data in a rigid manner in data backup, just like a picture, which is in a static state for half an hour or even longer. Then we will edit after the collection, and only keep 5 minutes of monitoring time. But we will note on the screen, when the total time period starts and ends, to indicate that the picture has been kept like this during this time period One state. This is convenient for viewing, but we have also made a backup of all data and kept the most original records."

Shen Shen took a look at Ding Xiaoman, he was a 28 or [-]-year-old young man, but he was very shy, and he seemed a little embarrassed when facing Shen Shen and Wang Lu.

Shen Chen stretched out his hand, and he wiped his hand vigorously on his clothes before shaking hands with Shen Chen, the corners of his mouth moved, but he couldn't say anything.

Song Qian said with a smile: "Xiaoman is a technical geek, he has nothing to say about business, but he just doesn't communicate with people very much. He has almost no other hobbies except computers. He is still single at 28. He is not in a hurry. We will help him." He was in a hurry and introduced several girls to him, who knew that he couldn't speak a total of three sentences for a night of dating with them, and in the end it was all over."

Shen Chen also laughed, he knew that tech geeks were like this.

Then Song Qian introduced another one: "Xu Weishan is mainly responsible for installation, maintenance and debugging. His usual job is to determine which camera is loose or the angle has changed through the monitoring screen. Although he is not very eye-catching, he can It’s amazing, he knows the positions of all the cameras in the whole forest city, including the angles and angles of the cameras, and he knows everything by heart.”

Wang Lu glanced at Shen Chen, and Shen Chen smiled at Xu Weishan. The two shook hands, and Shen Shen said, "You should not be 30 years old, right?"

Xu Weishan replied: "29, thirty in two months."

"Are you married?"

"People's children know how to make soy sauce." Song Qian teased at the side, Xu Weishan said: "I got married early, I got married at 22, and my child is nine years old this year, and he is in the third grade of elementary school."

Next, Song Qian focused on introducing Fan Ye, the engineer responsible for the network security of the SkyEye system, a man in his 40s, wearing a pair of black-rimmed glasses with lenses as thick as the bottom of a beer bottle. When asked his questions, he answered them very professionally, leaving Shen Shen and Wang Lu in a daze, and then they noticed that Fan Ye looked at them with contempt.

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

"Group leader Song, I want to ask you a question." Shen Shen took out a cigarette and handed one over, Song Qian waved his hand: "I don't smoke, and you know that smoking is not allowed in our working environment .”

When he said this, Shen Chen was embarrassed to light up, and he put away his cigarette: "Many stores and supermarkets now have their own monitoring systems. It shouldn't be difficult to hack into these monitoring systems, right?"

Although Song Qian didn't know why Shen Chen asked such a question, he still replied: "If the network environment where these systems are located is open, then it is not difficult to hack into such systems."

Wang Lu asked what is open, and Song Qian replied: "Their LAN is connected to the Internet. If the LAN is disconnected from the Internet, it will take a little effort to intrude. But as far as I know, most of these LANs are They are all open, especially if they need to use certain apps for monitoring, they must be connected to the Internet to be able to use them, just like the monitoring apps such as Tiankanjia, My Life, etc. Some functions are not connected to the Internet. Doesn't work. Once connected to the internet, it's sure to be able to find its way in and out."