Paris

Li Zhen doesn't like this city, when he came to Paris a long time ago, Li Zhen was robbed twice, once when he was walking well on the road, he was robbed by two black men, and he went to call the police for help, and the police didn't have time to talk to him at all.

The second time was in a convenience store, when I was shopping, I met a robber who robbed the store, and I robbed him by the way, at that time Li Zhen had just finished his studies and had not yet entered this industry, at that time Li Zhen also had the ability to subdue the robbers, but others had guns, so ...... (The author's personal real experience!) ）

"After you go back, I need your internal monitoring, I don't need you to do anything, just plug this USB flash drive into the computer you connect to the monitoring!"

Charles looked at the hard drive in Li Zhen's hand and looked at Li Zhen: "What is here?" I will not do anything that harms the interests of the Intelligence Agency! ”

"An auto-tracking Trojan so that I can hack into your intelligence bureau's internal network, which was the same virus the last time your intelligence bureau was paralyzed!"

Hearing Li Zhen's words, Charles hesitated, there was a lot of important information inside the Intelligence Bureau, but it was just like this to open the door for Li Zhen to come and go at will......

"I need to know who set up the plot to capture Julia, if you don't want that stupid woman dead!"

"Okay!"

Charles took the USB flash drive in his hand and put it in his pocket, and at this time Li Zhen took out the small notebook: "What is the phone number of that guy named William?" And the office phone, tell me all! ”

"Good!"

After Charles and the others got out of the car, they immediately rushed to the Intelligence Bureau, while Li Zhen stayed in a hotel opposite the Intelligence Bureau not far away.

The enemy facing this operation is a bit tricky, so Li Zhen has to make complete preparations, he and the third child may not be able to deal with it, Li Zhen is also a steady character, never fighting unprepared battles!

"Brother!"

"It's getting dark, how is the seventh?"

"It's okay, he still has a few escort tasks, and I'll rush over when I finish it!"

"Go in and talk!"

After a brief meeting, Li Zhen told everyone about the matter briefly, Xiao Si's eyes lit up after hearing it, this guy has always wanted to invade a country's intelligence agency, Li Zhen has not allowed him to have a fair and honest opportunity now, and he is ready to act immediately.

"Let's check William's activity track last night, this is William's number, you check his whereabouts yesterday!"

"No problem!"

Xiao Si quickly turned on the computer, and then began to enter William's phone number into a frame, and then immediately a map-like sign appeared, and various dots appeared on the map.

Then Xiao Si overlapped this map with the satellite map of France, and a picture of clothes appeared, pointing to the screen: "Brother, this is the life track of the guy named William yesterday, but if he doesn't bring a mobile phone, it may not be accurate!" ”

Li Zhen glanced at the map, then took out William's information, and began to compare and look for some anomalies.

This method of determining a person's movement trajectory through a mobile phone sounds very lofty, but in fact, it has been used for many years, and the principle is very simple, that is, using a mobile phone to locate.

The mobile phone signal transmits information through the signal base station, even if you do not control the mobile phone, the mobile phone will continue to transmit signals to the nearest base station to ensure that the mobile phone signal is unblocked.

In this way, as long as you know a person's mobile phone number, you can find out the person's activity trajectory through the database of the communication company, there are hundreds of base stations in the city, and the mobile phone signal will only be transmitted to the nearest base station, so that once and again, similar to radar-like positioning, you can accurately lock a person's movement trajectory.

So in this world, as long as you use electronic products, there is basically no privacy, just depends on whether others want to check it or not.

Li Zhen quickly checked William's movements, and after setting off from home in the morning, there was no abnormality along the way, but he was in the office building of the Intelligence Bureau last night.

"Can you investigate his call log last night?"

"It takes some time, his phone is a confidential communication, and it has been internally encrypted by the communication company, but it won't be difficult for me!"

After Xiao Si finished speaking, he quickly began to operate, and after more than ten minutes, a document was printed.

"Didn't find out, did you?"

"Of course!"

William made fifteen phone calls yesterday, Li Zhen glanced at it, and did not find any abnormalities, these things are all in the William information he got before.

"He's got a cell phone!"

Li Zhen squinted his eyes and made a judgment, for a person like William, it is impossible to have only one mobile phone, or even five or six mobile phones, in addition to many calling cards.

"Can you find out if there are other cell phone signals within William's activity area with the same trajectory?"

After Xiao Si heard it, he shook his head: "It's not easy to check, the data is too big, at least one server is needed, our computer is not enough, if you invade the server, it will be easy to be discovered!" ”

"So can you do it by looking up how many phone calls were made within the confines of the French intelligence last night?"

"There's no problem with this!"

Xiao Si's movements are very fast, and the end is also very good, as long as he does not invade some areas with a relatively high level of secrecy, he can be at ease.

Soon Xiao Si printed out a long communication record: "These are all calls made last night!" ”

Li Zhen glanced at it, and felt that his scalp was a little numb, this workload was a bit big, not to mention himself, even if ten more people came, it would be difficult to find clues from so many phone calls.

Sitting on the bed, Li Zhen lit a cigarette and began to think: "Is there a new number here?" It is a phone that has just been turned on, and it is a phone that is discarded directly after using it once or a few times.

"I'll try my best!"

Xiao Si wiped his forehead, this workload is also very large, and it needs to slowly reduce the retrieval range a little bit, but Xiao Si doesn't have any complaints, for him, being able to hack any server is the greatest pleasure.

"Brother, do you want to arrest this William directly!"

The sixth child stood aside and played with a pistol and whispered.

Li Zhen directly hit him on the head with a hammer: "Follow the old seven gangsters, the mixed brains are gone, do you know if you have to use your brains, otherwise what's the difference between fighting and killing and mercenary novels?" And you can't scare the snake yet, you know? ”

The sixth shrugged his shoulders helplessly, looked up at the ceiling, and sure enough, the thing that used his brain was the most troublesome!

PS: This kind of positioning method has long been used on a large scale! ~ I didn't make it up! ~