In the hacker world, there is a famous saying: in the world, there is no absolutely safe system!

And so it is. Pen, fun, pavilion www. biquge。 info

For example, a physically isolated network known as a hacker nemesis looks like a completely secure system, right?

After all, if the network is physically isolated, it is possible to install a wireless communication module and thus be controlled remotely.

But what is currently in front of Nanlin Guiyi is a dead end.

The physical isolation network, coupled with the configuration of the Faraday cage, not only isolates the physical network, but also isolates the wireless network, how can this situation be invaded?

Unless you go in the real world and then get in touch with the intranet!

But how to get in the real world?

The security defense of the Potevio Machinery Factory is very strong, with a security monitoring system without dead ends, security patrol personnel with loaded guns, plus an automatic weapon system connected to the Internet of Things, and even an infrared detection system.

If it weren't for Nanlin Guiyi to take the first step to get the security monitoring system, automatic weapon system, and possible infrared detection system, etc., just by virtue of the three people of Tiemen breaking into the Putian Machinery Factory, they would have knelt down in minutes, and they would have been captured if they didn't die.

However, the problem is back to square one.

The security monitoring system of Potevio Machinery Factory is a physically isolated internal closed network, coupled with the fact that Potevio Machinery Factory is protected by Faraday cages, and even the wireless network cannot invade it, how can Nanlin Guiyi invade the security monitoring system?

Whether it is a physical invasion or a network incursion, the road is blocked.

A dead end is a dead end!

Nanlin Guiyi said his analysis, and finally said, "Tiemen, didn't you investigate the target before you acted?" In the case of the goal, we simply do not have any chance. ”

Iron Gate laughed, "Don't worry, Mr. Lin, we have a way to break the game." Your analysis is correct, if it is a regular situation, we will definitely not be able to break the game, but unconventional methods, we have a way to crack it. Wait a minute, Mr. Lin, in more than ten minutes, we can connect to the network inside the target. ”

"Oh? What can you do? "I need to be informed at all times so that I can deal with the unexpected." ”

Iron Gate replied affirmatively, "Wait a minute, we'll set up a few webcams right away." ”

A few minutes later, Nanlin Guiyi detected the webcam through the signal repeater, and Tiemen was also in the encrypted voice communication channel, and responded: "Mr. Lin, you should be able to connect to the webcam, right?" ”

"Yes." Nanlin Guiyi responded, through the webcam, Nanlin Guiyi once again observed the Putian Machinery Factory, this factory, worthy of the supporting facilities of the nuclear power plant, the security defense level is too high, completely forming a dead end.

According to Nanlin Guiyi's judgment, it is impossible to invade the Putian Machinery Factory unless it is attacked.

No!

There is another possibility...

To cite theories from the hacker community, no matter how strong a defense system is, it is also very vulnerable internally.

The external defense of the Putian Machinery Factory has indeed achieved the level of a dead end. But what if it collapses from within? For example, Mr. Song bought off the personnel inside the Putian Machinery Factory?

Nanlin Guiyi took this situation into account, if this is really the case, maybe the dead end can be solved.

The time was close to seven o'clock minute by minute, Nan Lin Guiyi waited patiently, and at six fifty-nine o'clock, the iron gate sent a reminder, "Mr. Lin, there is still one minute, we can connect with the target's internal network." Please note, Mr. Lin, we only have three minutes. If, within three minutes, you have not completed the invasion, our operation will fail. ”

"Is it only three minutes?" Nanlin Guiyi asked in confirmation.

"Yes, only three minutes. We only have three minutes on the inside line. Because, inside the target, there are also security patrols. We need to complete the intrusion within three minutes, and control the security monitoring system to completely hide the external network nodes set by the target. Iron Gate explained in detail.

Nanlin Guiyi sighed secretly in his heart, it was really the way to meet the inside and the outside!

Dead, it will also collapse from within!

Through the webcam, Nanlin Guiyi saw that Tiemen was holding a metal rod and passed through the steel barricade that protected the Putian Machinery Factory, and at the top of the metal rod, a 'Gong' antenna popped up.

"This is a directional signal antenna, and our inner line will also use a directional antenna to transmit signals for us. Mr. Lin, prepare to start the invasion operation. Once the signal is connected, don't waste a second. ”

Nanlin Guiyi affirmed, "I know. ”

Seven o'clock sharp.

Nanlin Guiyi found that the directional antenna had a connection signal through the satellite signal connector, and he did not hesitate at all, and immediately traced the source through the directional signal antenna.

The work of reverse tracing was very smooth, and along the connection signal of the directional antenna, Nanlin Guiyi discovered the internal network of the Putian Machinery Factory. Because the signal of the directional antenna is a direct extension of the internal network, Nanlin Guiyi does not need to spend effort to invade at all, and directly enters it.

It takes a little bit of time just to seize the permissions of the security monitoring system, as well as the permissions of the IoT management system, and the server permissions of the internal network.

But with just one internal network or multiple protection internal networks, how powerful are the servers expected? People have not thought about the problem of being invaded at all!

In just fifteen seconds, Nanlin Guiyi obtained the authority of the security monitoring system, and a few seconds later, Butler assisted Nanlin Guiyi to obtain the server authority of the internal network, and then naturally obtained the control authority of the Internet of Things.

The whole process didn't take half a minute!

"Iron Gate, I've got all the permissions, what are the characteristics of your inside line?" Nanlin Guiyi asked about the iron gate, in fact, Nanlin Guiyi had found a suspicious target through the security monitoring system.

It was a man in a white lab coat who had plugged his phone into the network cable of the security monitoring system, and made a tool that resembled a directional antenna using an aluminum metal tube.

Iron Gate was amazed!

Because, Mr. Song also has senior hackers, and according to the other party's assessment, it will take at least two minutes for the intrusion event, not including unexpected situations. It's only been less than a minute, right?

Although he was surprised in his heart, Tiemen still calmly responded to Nanlin Guiyi, and the situation described by Tiemen was the same as the suspected target found by Nanlin Guiyi, and Nanlin Guiyi quickly dealt with the security monitoring system.

"Okay, Iron Gate, all the system control is complete, and I have also dealt with the evidence left by your internal line, so you can start acting!" Nanlin Guiyi commanded.

Nanlin Guiyi controls all the safety monitoring systems of the Putian Machinery Factory, and the safety monitoring system of the Putian Machinery Factory is a layout without dead ends, and he wants to see what Mr. Song's purpose is. (To be continued.) )