. Shi Lei obtained a gold vein worth 52 billion Xia Guoyuan from the internal network of the National Security Bureau of South Vietnam. It stands to reason that Shi Lei should be very happy. But in fact, Shi Lei didn't feel too happy.

This piece of gold vein information worth 52 billion Xia Guoyuan was placed in front of Shi Lei, which gave Shi Lei an illusion that it was deliberately given to him by the Nanyue Kingdom.

Why do you say that?

Why is such important information only stored in the third level of confidential space? It can be placed in a confidential space on a higher floor to give closer protection.

Not only that, the encryption method of this gold vein is just an ordinary long password encryption, which also makes Shi Lei very puzzled. Based on the value of this information, it is definitely worth using a special encryption scheme, or even developing a separate encryption scheme for it.

Could it be that this is a false information? Shi Lei secretly guessed the authenticity of this information, if this was a false information, and in the corresponding area, the South Vietnamese State arranged spies, wouldn't it be a well-arranged fishing trap?

As long as someone goes to the relevant area to investigate, it is appropriate to get the information of the gold vein, and the South Vietnamese country can also find the culprit of the invasion of the South Vietnamese National Security Bureau.

The more Shi Lei thought about it, the more likely this was possible, but Shi Lei couldn't understand how the National Security Bureau of South Vietnam could make such a detailed document in such a short period of time. After all, Shi Lei analyzed the document, and the date of creation of this document was not just created, but more than a year ago. Moreover, the most recent revision time was also half a year ago.

The time when the file was created and when the file was modified. Although it can be modified by some special means, the way Shi Lei's investigation is different from the ordinary way, and if the time is modified, Shi Lei can be queried. The current situation is that the creation time and modification time of the file are completely normal, and there is no flaw at all.

Shi Lei didn't believe that if someone modified the time when the file was created and modified, he wouldn't be able to find out.

If this document is a false document, then the head of the National Security Service of South Vietnam. Is their primary profession a cybersecurity specialist, and their secondary profession an astrologer, or is it a prophet?

Otherwise, why did you start preparing this document a year ago?

Judged by the time when the file was created and the time when the file was modified. Shi Lei has a reason to believe that this document is genuine. Just, the National Security Service of South Vietnam. What to do with this valuable confidential document. Is it such a flippant attitude?

'What do you mean, Hangers, of the South Vietnamese Kingdom?' Shi Lei secretly guessed in his heart.

"Yi Zuer, extract the time node in the gold vein file information, from the creation of the file, according to the time record of the previous file modification as the node, make a timeline!" Shi Lei commanded Yi Zuer.

The time of each modification of the file. Shi Lei can be investigated, and according to these time points, Shi Lei can make a timeline. Then according to this timeline, Shi Lei can investigate further.

“Sir。 The timeline is complete. Yi Shuer reminded Shi Lei.

Shi Lei thought for a while, and then instructed Yi Zuer: "Yi Zuer, mark the location of the gold vein, take the location of the gold vein as the center, and search for all the highway passages that can reach the gold vein." ”

The location of the gold vein is located on the border between the Nanyue Kingdom and the Xia Kingdom, and most of the gold veins are distributed in the territory of the Xia Kingdom. It is impossible for the South Vietnamese exploration team to go by helicopter. Because, when the helicopter of South Vietnam is close to the border of Xia State, it will definitely be warned by Xia State, and even regarded as a provocation by Xia State.

The South Vietnamese exploration team will not choose to walk. The equipment required to detect gold veins is obviously very unscientific if it is carried on the shoulders of manpower.

Only the road passage is the way that the South Vietnamese exploration team may choose!

According to Shi Lei's instructions, Yi Zuer marked the possible route information on the map displayed by the projector. However, the gold vein is a remote area, and the nearest road is about 10 kilometers away.

Shi Lei frowned slightly, 'Ten kilometers away?' That's not too far! ’

"Yishuer, retrieve the surveillance cameras of all possible lines, extract all the surveillance footage, query the driving records recorded within the timeline, analyze the license plate number, and record the duplicate license plate number." Shi Lei instructed Yi Zuer to conduct basic analysis.

What Shi Lei just ordered was definitely a very troublesome thing. If humans are asked to carry out this work, let's not talk about how much manpower it will take, but whether humans will make mistakes. Performing such a boring job, humans generally make mistakes.

Yi Zuer executed Shi Lei's order, first finding the line that meets the requirements, and then inquiring about the surveillance cameras along the corresponding line. This work consumed some of Yi Zuer's time, and it was about five minutes later that Yi Zuer gave Shi Lei feedback information, indicating that this work was completed.

"Sir, because of the long time, only part of the surveillance video records have been queried, and the monitoring records at some points in time have been unable to be found." Yi Shuer replied to Shi Lei.

Shi Lei nodded, "Continue to the next step of analysis!" ”

Yi Zuer began to analyze the obtained surveillance video footage, and from all the surveillance video footage, he searched for the license plate that appeared repeatedly in the timeline.

When Yi Zuer was comparing information, Shi Lei was not idle, Shi Lei was optimizing the 'deep recovery' software, this software is Shi Lei's guy who ate in his last life! In his previous life, Shi Lei mainly relied on recovering data to obtain living expenses, as well as college tuition.

Nearly half an hour later, Yizhuer finally completed the data comparison, but the results were not very good!

"Sir, start at the beginning of the timeline and end at the end, within the timeline, the surveillance video record did not find the license plate number that was repeated three times or more. The license plate number that was repeated twice showed a total of four vehicles. Two of the cars were small cars, and according to the number plate investigation, the two cars were vehicles from the Xia area, belonging to citizens of Xia country, and tourist visas were used to enter South Vietnam. ”

Yi Zuer continued to introduce the situation, "Two other cars. One of them was a South Vietnamese military vehicle, which was analyzed from the license plate number and was a military jeep. The other is a large transport vehicle and is not suspected. The monitoring record does not have more recorded information, and it is impossible to judge more situations. ”

Shi Lei said with a smile: "Yi Shuer, the 'deep recovery' of the update subsystem, the update plan has been completed. Shi Lei will optimize the deep recovery software after that, and let Yizuer update and load it into the main system.

"Sir, the update is complete." Eater quickly updated the Deep Recovery System.

"Ivier, activate the Deep Recovery System. Use the deep recovery subsystem to restore all the historical records of the surveillance cameras that have just been checked and deleted history. Shi Lei once again instructed Yi Zuer to restore the historical data of the security surveillance camera first.

History of security surveillance cameras. It is stored on the corresponding hard disk device, although the history is deleted. can be the underlying layer of the hard disk. Deleted records can still be retrieved.

This kind of history will not be erased at all, unless repeated low-level formatting is carried out. If it's just advanced formatting, it's not going to work at all.

Shi Lei optimizes the deep recovery software in order to recover the records of security surveillance cameras. So that more information can be judged. More than half an hour passed, and it was already more than two o'clock in the morning on June 4, and Shi Lei's drowsiness seemed to be all in his heart.

Before Shi Lei fell asleep, Yi Zuer finally finished analyzing again. This time. Evaluator obtained a nearly complete surveillance record, and recorded it through matching, three of the vans, which appeared seven times in the timeline.

"Have you found out who owns these three vans?" Shi Lei asked.

On the projector, Yi Zuer projected the identities of the owners of the three vans. Shi Lei checked the identities of these three people and did not find anything wrong with each other.

'It's weird, that's not right! Shi Lei thought to himself in his heart. "Yi Zuer, check if these three vans have an on-board GPS system?"

In later generations, the average vehicle had an on-board GPS system, but in 2007, the vast majority of vehicles did not have a GPS global positioning system.

"Sir, the target's three vans, all without on-board GPS navigation." Yi Shuer replied to Shi Lei.

Shi Lei was a little depressed, if the three vans found by Yi Shuer had a GPS global positioning system, then Shi Lei could log in to the three-level management authority of the global positioning system, so as to investigate the driving records of the three cars.

As long as you look up the driving records of the three cars, you can tell if they have been near the gold veins. If the three vans had been to the vicinity of the gold veins and had been there many times, then it would have been proved that there was at least a suspicion in the vicinity of the gold veins, and not something that the South Vietnamese National Security Agency had pulled out nonsense.

However, the target vehicles compared by the license plates do not have a GPS global positioning system, so it is impossible to know their driving track records, and naturally it is impossible to know whether they have been close to the vicinity of the gold vein.

'Damn, this information is real or not!' Shi Lei roared a little in his heart, if this was a fake information, Shi Lei would definitely not spare the South Yue Kingdom.

If this is a true piece of information, Shi Lei will use this information to seek a suitable benefit for himself.

"Yi Zuer, check out, where is the surveillance camera closest to the gold vein?" Shi Lei asked Yi Shuer.

Yi Zuer immediately replied, "Sir, the surveillance camera closest to the gold vein is more than 20 kilometers. ”

"Idiot, it seems that there is only another way to determine the result!" Shi Lei has another method in his heart, but that method is a bit dangerous....

(To be continued......)

PS: [Special thanks] x00852 alliance leader, reward 100,000, plus will be completed before April 19, I hope to understand.

【Reward thanks】Coronet, Snow Lotus Fragrance in the Night, Tip 100.