After Gu Chen typed the last code, there was a golden light in the computer, and he had completed the upgrade of the firewall.

At present, there should be no two people who can crack this system nationwide, or even the whole world.

If there is, you can start working tomorrow with an annual salary of 30 million. The firewall developed by Gu Chen, even if it is a super hacker from Tencent or Ali, don't even think about breaking through it easily.

"Okay, done!"

Gu Chen let out a long sigh of relief.

Seeing that the system firewall had turned golden, Du Niao was stunned for an instant.

"Is this the famous Atreus firewall?! It is said that there are no more than three people in the world who can make this firewall. How...how did you do it!"

Du Niao said to the king with a shocked face.

Gu Chen spread his hands and jokingly said with a smile: "Of course what you said was made by hand. To be precise, there are only two people who can make it in this world. One is me and the other is me. Master, as for the third person is already the famous American cyber hacker Jodison Brady, he is already dead! He passed away last year!"

"Then what if this firewall is broken?!"

A middle-aged man next to him asked.

"Broken?! Let him report here tomorrow. The annual salary starts at 30 million. If any of you can break this, the same annual salary will be 30 million!"

The only person in the world who wants to break through the firewall he studied is Grandpa Jiang.

Perhaps the outsiders of the firewall may see that everyone is invincible, but in the eyes of Grandpa Jiang, it is only a matter of a minute or two.

Although Gu Chen's hacking skills are so good, he has only learned a little bit from Grandpa Jiang.

Just when Gu Chen was about to leave, he felt dizzy suddenly, as if someone was pinching his heart, and he fell heavily on the desk as if he had lost his balance.

"big boss!!"

Everyone was shocked, and quickly trot towards him, Du Niao was the first to help him up: "Are you okay?! This young man has high blood pressure?!"

Gu Chen rubbed his temples, and a picture appeared in his mind, a doctor in a white coat was going to a certain place with his arms around Bai Ruohan.

After he and Bai Ruohan practiced the Sun Moon Treasure, he had a certain connection in mind, and if he encountered any danger, he would feel it immediately.

"Give me the phone!"

Gu Chen rubbed his temples and said in a low voice while supporting the desk.

Du Niao hurriedly touched him, and then took out a mobile phone from the bag and handed it over.

"Who are you calling?!"

After Gu Chen took the phone and unlocked it, he dialed Qiuyue's number.

He didn't say much, but just said lightly: "Send all the five-tone and six-character people, and strictly control all those who want to go out of the city!"

"understood!"

Qiuyue said in a deep voice on the other end of the phone as if she understood something.

Night fell.

It gets dark late at night in summer, mostly around eight o'clock. JrNovels.com