Bugs, cameras, these are essential supplies for spies, and they are not special equipment at all, needless to say, even if the water organization is poor.

But after Yang Yi put the handy surveillance equipment on the dining table, he couldn't help but slap the table and said loudly: "You will never guess what I have found!" ”

Xiao Ran glanced at Yang Yi, then she picked up the camera and said, "What did you find?" ”

Yang Yi sighed, and then he said in a deep voice, "Handle, Martin. Howard's handle, he must obediently obey the handle! ”

Xiao Ran rolled her eyes at Yang Yi and said, "What is mysterious, what is sold, cut." ”

Kate pressed the play button of the voice recorder, Yang Yi's eyes were quick, he snatched the recorder, turned it off, and said in a serious voice: "I solemnly warn you, the content of this may cause you to be disgusted, so before you decide whether to listen to the content or not, please think carefully." ”

Xiao Ran was very surprised and said, "No, is Martin really a dog lover?" ”

Yang Yi was stunned for a moment, and then he frowned and said, "What, you say it again?" ”

Xiao Ran was also stunned for a moment, and then she said a little sneeringly: "Uh, isn't it?" ”

Yang Yi couldn't cry or laugh, and said, "What are you thinking about in your head?" ”

Xiao Ran suddenly became angry again, she looked at Yang Yi and said angrily: "What are you doing mysteriously, what is there to see." ”

Xiao Ran snatched the recorder and turned on the play button, and then the voice soon came out, and soon, Xiao Ran said with a disdainful face: "What! Martin. Howard is just gay. ”

Yang Yi said puzzledly: "It's just? Nothing more? ”

Kate said thoughtfully: "Speaking of Martin. Although Howard is older, he is indeed quite handsome and has a lot of personability. ”

Xiao Ran nodded and said, "That's right, the charm of a mature man." ”

Kate listened to the recording and nodded, "The voice is quite sexy." ”

"Yes, I agree."

"And is his boyfriend handsome?"

"Take a look, isn't there a video?"

Yang Yi couldn't help it, he said loudly: "Stop!" Stop it! You're completely wrong, right? Turn it off! I can't stand it anymore, turn it off immediately! ”

After snatching the recorder and turning it off, Yang Yi said bitterly: "What are you thinking, can you be normal, can you?" Can! ”

Xiao Ran said disdainfully: "Rare and strange." ”

Kate also spread her hands and said, "Yes, is this what you are talking about?" ”

Yang Yi was about to collapse, and then he said hatefully: "Forget it, it's better that I have poor tolerance, and now call the candy and Schultz down." ”

No one needs to shout, Candy and Schultz have already come down with their computers.

Although she stayed up all night, Candy didn't look tired at all, she reversed the computer and put it in front of Yang Yi, and said: "It's all done, there are thirty-two cameras on the outside, and there are a lot fewer surveillance cameras on the inside, only seven, but all of them are in very critical positions, and the fire evacuation diagram helps us figure out the key locations, the central computer processor of the Ministry of the Interior is on the third floor, where are there two cameras, and there are two guards, in fact, there are a total of thirty-six guards in the entire Ministry of the Interior building, But there are only six night guards, two of whom are in the monitoring room. ”

Schultz also put his computer on and said with a smile: "We can take over the surveillance at any time, oh, some computers have cameras, so we also took a lot of images of the interior of the office, all of which are insensitive areas, but enough to build a complete 3D schematic, I spent most of the night with White Roar to make the 3D schematic, and by the way, we also drew the patrol route of the night guards, and the red line part is." ”

Great, Tang Guo and Schultz's abilities are better than Yang Yi's most optimistic predictions.

Yang Yi had a smile on his face, he nodded frequently, and then he said loudly: "How did you do it?" ”

Schultz shrugged his shoulders and said, "That's it, like all hackers." ”

"I mean, how do you solve the technical difficulties? It's impossible to connect to the Internet in a place like a monitoring room, right? ”

Tang Guo waved his hand and said: "Yes, it is physically isolated, there is no connection to the network, but it can still be hacked into the monitoring network, because the system they use has loopholes, they only need to connect to a computer in the Ministry of the Interior building, they can control more computers, and then if they have the opportunity, they can control the computer in the monitoring room, of course the monitoring needs a computer, and we can do it easily, there is no luck component, this must be explained." ”

Yang Yi looked at Xiao Ran, then at Kate, and then found that the two of them were also in a state of confusion, so he knew that he was not the only one who couldn't understand.

"I mean, how can you control a computer in a monitoring room that isn't connected to the outside world?"

Schultz said solemnly: "It's not that there is no network, it's just that there is no network with the outside world, but the monitoring itself is a small closed network, as long as we can take over the computer ......." ”

Tang Guo smiled: "That's not what they asked, let me explain, we use voice, understand?" ”

"Voice?"

"Yes, the basic principle is very simple, use a computer with a sound or its own speaker to generate sound waves, which are inaudible infrasound waves that the human ear can't hear, and then introduce the vibration frequency into the data storage disk of the hard disk, find the right frequency, and produce a resonance effect, as a means of attack, interfere with the hard disk until the hard disk is damaged and stop working."

Yang Yi touched his head and said; "So amazing?"

Schultz replaced Tang Guo as the commentator, he smiled: "This is not magical, this is not a new technology, in 2008, the chief technology officer of the American company Joyent publicly demonstrated this technology, I was just inspired to improve on the basis of this technology." ”

Tang Guo pointed to the computer and said, "When the guards found that the control computer in the monitoring room stopped, of course they needed to overhaul it, but when they restarted it and found that it was useless, they could only change the computer, what computer would you use?" Is it a bulky desktop computer or a pick-and-go laptop? When they replaced the original computer with a laptop to control all the cameras, then we had the opportunity to have this laptop establish an iFi connection, and we controlled it remotely, so until they changed the computer, the surveillance system in the Ministry of Home Affairs building was controlled by me and Black Lightning, and it was as simple as that. ”

Kate looked at Yang Yi blankly and said, "Do you understand?" ”

Yang Yi thought for a while and said, "It seems to understand, so it means that now you are in charge of monitoring, but after changing the computer, it won't work, right?" ”

Tang Guo spread his hands and said: "Please, think about the work efficiency of the Ministry of the Interior, wait for them to confirm that the computer has been damaged, and report to apply for a new computer, how long do you think it will take?" ”

Yang Yi took a breath and said, "The desperate inefficiency of the Ministry of the Interior, you are right, that's it, so our opportunity to do it has come, that's it!" ”