"You're still a little impatient." On the way back to the Wan Chai Police Headquarters, Fu Liangtao said to Pang Jitong, who was sitting in the passenger seat. "Emotions are too easily influenced by people, which is not conducive to criminal investigations."

Fu Liangtao's tone was more like a conclusion than giving advice, which made Pang Jitong sound uncomfortable. Pang Ji was slightly unconvinced, but he also knew that it was useless to refute in this situation, and it would only make him appear more naïve.

After thinking about it, Pang Jitong still wanted to leave a good impression in Fu Liangtao's heart on the first day of work. So, Pang Jitong took the initiative to open the chatterbox for analyzing the case and said, "Sir Tao, do you think Xu Jingjia is suspicious?"

Fu Liangtao was originally sorting out his thoughts in his mind, and he didn't pay attention to Pang Jitong's words for a while, so he only responded casually, but did not answer Pang Jitong's question.

Pang Jitong raised his voice and asked again: "Sir Tao, I said, what do you think of Xu Jingjia?"

This time Fu Liangtao heard it, but he said to Pang Jitong in turn, "Why don't you tell me first?"

Pang Jitong was a little caught off guard, so while reading the transcript he had just made, he relived Xu Jingjia's expression and tone in his mind, and then said with a little hesitation, "...... I think...... She...... It's a little strange......" Then, he said thoughtlessly: "It's the first time I've seen someone seal the front and back lenses of their phone with sticky notes......

Pang Jitong said this, in fact, Fu Liangtao also noticed it when he left a phone call for Xu Jingjia.

In addition to this, Fu Liangtao also had a question in his heart, that is, the question he didn't have time to ask at the end - why during the investigation, they couldn't find any of Xu Jingjia's social media accounts through the social media accounts of Li Bingde and Zhou Muqing? Whether it is from Li Bingde and Zhou Muqing's friends or tracking lists, or from past interaction records, no trace of Xu Jingjia can be found.

Xu Jingjia's generation has grown up overlapping with the rise and development of social networks, and it stands to reason that she will not be without one or two social media accounts.

Xu Jingjia shouldn't even be equipped with the most basic application for sending free text messages to each other, right?

"Anyone who knows me knows how to contact me with a message." Thinking of what Xu Jingjia said, Fu Liangtao faintly felt that it was wrong. Or is the message Xu Jingjia referring to in this sentence a traditional short message service (SMS)?

Fu Liangtao was thinking about it, and then he heard Pang Jitong continue: "I can't say it either, if you want to say that Xu Jingjia's confession is inconsistent, right? However, the relationship between people is inherently complex, and it cannot be decided all at once. However, when mentioning the deaths of Li Bingde and Zhou Muqing, Xu Jingjia's reaction was a little too calm. It's like...... She didn't feel the news at all.

Let's not talk about Li Bingde first, if the relationship between Zhou Muqing and Xu Jingjia is really as Xu Jingjia said, then Xu Jingjia's reaction is really a little chilling. Moreover, my friends for many years also broke it off......

Fu Liangtao listened, only occasionally nodding his head to show that he was listening or expressing agreement.

Pang Jitong also said: "If we want to know whether Xu Jingjia is related to Zhou Muqing's case, we probably need to find out the real reason why the two of them broke off contact. However, at this stage, there seems to be no evidence to prove that Xu Jingjia has any direct connection with Zhou Muqing's case.

What I don't understand is that if we need to get more information about Zhou Muqing, we have many other choices besides Xu Jingjia, and choosing Xu Jingjia is a bit reluctant. Unless ......"

Speaking of this, Pang Jitong paused, looked at Fu Liangtao's side face quietly, and then said, "Unless Xu Jingjia has a lot to do with Li Bingde's case."

The implication is that the investigation of Zhou Muqing's case is just a incidental matter.

Hearing Pang Jitong's words, Fu Liangtao suddenly laughed happily and said, "Fortunately, my brain is not too slow. This time, the old fox didn't lie to me, and the person he sent me this time was indeed not bad." Fu Liangtao's words were half to himself, half to Pang Jitong, and he agreed with Pang Jitong's performance.

Then, Fu Liangtao explained to Pang Jitong: "Zhou Muqing's case has already ended on the ME side, and when Zhou Maoxing brought it to negotiate with me, I didn't have any plans for the next step. It wasn't until I saw Xu Jingjia's photo that I thought that this case should be a good disguise......

Speaking of which, it happened that the traffic light turned from green to yellow, and as the car stopped, Fu Liangtao turned his face to look at Pang Jitong, and said with a smile: "Coincidentally, let me also verify your business ability."

Pretense......

Listening to Fu Liangtao's casual words, Pang Jitong suddenly had a feeling that he had played tricks on him. Pang Jitong looked at the sly smile faintly in Fu Liangtao's eyes, and suddenly felt that he was still too shallow. You know, until just now, he was still analyzing the case so seriously.

Fu Liangtao looked at Pang Jitong's face slightly gloomy, and he didn't want to smile more, so he coughed and cleared his throat, and said seriously: "However, since I have taken over Zhou Muqing's case, I will naturally investigate it seriously. Don't look at me like that, Zhou Muqing's case is no different from other cases, and my use of this case as a cover does not mean that it is not important."

At the end, Fu Liangtao's face was a little unnatural because of the sudden lack of heart, and then added: "Moreover, your performance did not live up to the old fox's praise." It was a little appeased to Pang Jitong.

Fu Liangtao's recognition of Pang Jitong is also sincere. Fu Liangtao was also young and understood the feeling of wanting to participate in the investigation of a big case. What is rare is that Pang Jitong did not take Zhou Muqing's case lightly because he felt that Zhou Muqing's case was insignificant, and was able to take every detail of the investigation seriously.

Pang Jitong's expression faded, and Fu Liangtao's attitude made Pang Jitong's dissatisfaction gradually ferment. Because of this, Fu Liangtao's casual affirmation was more perfunctory to Pang Jitong's ears. However, Pang Jitong aroused his interest in Li Bingde's case because of Fu Liangtao's special treatment of Li Bingde's case, so he once again suppressed the disbelief in his heart and asked, "What is Li Bingde's case all about?"

Pang Jitong unconsciously revealed his emotions in these words.

Fu Liangtao didn't say anything more this time, but handed a thick folder to Pang Jitong before the traffic light turned green, and let Pang Jitong understand the inside story by himself.

Li Bingde's case has one thing in common with Zhou Muqing's case, that is, Li Bingde is also not the person who asked for the case to be filed.

The person who reported the case to the police was Zhang Wenyu, Li Bingde's former employer, the owner of Puyu's advertising design company.

When Pang Jitong saw the name of this company, he was surprised and said, "Hey, it turns out that Li Bingde's case is this one."

"Do you have an impression of this case?" Fu Liangtao was also surprised, but after thinking about it, he said, "That's right, this case has indeed attracted a lot of attention before."

"Not because of that." Pang Jitong shook his head and said, "It's just that I knew that I would be transferred to the Technology Crime Unit, and I wanted to know more about your work at that time, so I paid more attention to the cases you were responsible for." With that, Pang Jitong began to look down at the folder in his hand.

A month ago, Cheung reported to the police that Puyu's system administrators had detected unusual and covert activity on the company's network during a regular check of the system. Upon investigation, it was found that a Trojan horse disguised as a file format converter was running on some hosts in the network.

Named because it works similarly to the famous Trojan horse in ancient Greece, a Trojan horse is a virus-like malicious software. Unlike viruses, Trojan horses cannot replicate themselves and require the cooperation of the user to run the code, so most of them will disguise themselves as applications with other functions to trick the user into activating them.

The Trojan found on Puyu's network is an ancient Trojan called the FTP Trojan. This Trojan runs a file transfer server at a specific connection port, giving intruders free access to files on the network.

The detection log files of the anti-virus software also show that the anti-virus software had detected the Trojan earlier, but was unable to remove it.

Importantly, after the investigation, Puyu's system administrator confirmed that some of the files had indeed been accessed through this channel, and the files that were accessed included customer lists and design finalizations. The access to these archival documents indirectly confirms that the access was targeted and not unintentional. This means that the person accessing the file has a certain level of understanding of the company's systems, knows the location of the target file, and can accurately access the target file without having to explore the company's network beforehand.

Obviously, this cyber intruder is not just a boring hacker who just breaks in and hangs out.

Therefore, Zhang Wenyu immediately decided to call the police.

The first person to take over the case was also from the Technology Crime Unit of the CSTCB, which was Operation 1C of Operations Subgroup 2. At the beginning of the investigation, members of Operation 1C conducted an investigation in the direction of illegal access to the computer system, and screened suspects from Puyu's internal staff.

The results of the investigation are whether it is the big trouble before the resignation, the rumors after the resignation, or the time when the Trojan horse program became active, the technical conditions required to run the Trojan horse program, or the confessions of the employees of Puyu Company.

All the spearheads are directed at Li Bingde, who left his post more than a year ago.