The senior sister was stunned, and subconsciously opened her mouth: "Aren't you a freshman?"

Xue Xi nodded.

The senior sister also felt a little unbelievable: "No, you are a freshman, how did you optimize? You haven't learned that knowledge yet? And..."

Xue Xi said lightly: "You get out of the way."

Senior sister: "..."

She was about to say something, a voice came from the door: "Yuda is back!"

"Yu Da is back?"

The whole computer room burst into cheers.

The elder sister couldn't help raising her head and looked at the door. Xue Xi followed and saw that Yu Da came in. His nose was swollen and his mouth was bruised.

As soon as I entered the door, I threw my schoolbag aside, then wiped my lips and asked: "What's the matter?"

The senior sister said directly: "What's wrong with you?"

"It's okay." Yu Da said, "I was bitten by a few mice."

Senior sister: "..."

Knowing his temper, the senior sister did not ask at all: "You go and have a look! Our firewall has been attacked!"

Yu Da nodded, and when his gaze passed over the senior sister, he happened to see Xue Xi at a glance. His eyebrows furrowed and his eyebrows were cold. "Why are you here?"

Xue Xi:? ?

Before she finished speaking, the senior sister spoke: "The freshman mathematics department, here to help, what's wrong?"

Yu Da rolled up his sleeves and walked to his plane, and said, "I have a grudge against her, so I will drive her out."

Xue Xi:? ? ?

Senior sister:? ? ?

The senior sister couldn't help but said, "People are here to help without payment..."

Yu Da stood still and said, "I am also free."

Senior sister: "..."

Someone in front looked back at him and directly shouted: "Yuda, come here, I can't do it! I can't hold it anymore!"

Yu Da stood there motionless, staring at Xue Xi.

The elder sister understands his weird temper. After all, Yu Da is very capable, but his temperament is very perverse, which is famous in the department!

If you don't drive Xue Xi away, I'm afraid Yu Da can really stand there and let the firewall be broken.

The elder sister looked at Xue Xi with a bit of difficulty.

Xue Xi raised her eyebrows and looked at Yu Da. She slowly said, "I said, my computer is very good."

The senior sister also nodded, "Yes, yes, this classmate just said that she can optimize the firewall, she already has a plan! Her computer should be pretty good, stay and help!"

Yu Da sneered: "No matter how good she is, can she be better than me?"

Senior sister: "..."

Of course not.

In the entire Huaxia University, who didn't know that Yu Da was a rare ghost in a few years? !

The senior sister finally sighed, with a begging voice in her voice: "Yuda, I beg you, at this moment, if this senior girl can really optimize the firewall, it will be our luck. Don't get angry, okay? ?"

Yu Da still gave the senior sister face, snorted in his nose, he glanced at Xue Xi, and sneered: "You'd better do what you say, you can really optimize the firewall, otherwise... I will let you Can't eat and walk around!"

After saying this, Yu Da walked forward and sat in his seat.

The senior sister was relieved.

Just now when Yu Da came over, she stood up, and was about to sit down and continue typing the code, but Xue Xi pulled the chair, and then she had already sat neatly in front of her computer, banging quickly. keyboard.

The senior sister was a little worried, afraid that she could not do well, so she stood behind her and watched.

Xue Xi’s code was very fast, and he was obviously very familiar with the software they were using. After only looking at it for a while, the school girl was sure that this school girl would really optimize the solution!

When she was about to continue watching, the teacher in front saw her standing and couldn't help calling her: "Go and help others, don't stand there!"

When the senior sister heard this, Xue Xi couldn't care about it.

After all, firewall optimization does not take effect immediately, she has to help others resist external attacks!

Therefore, the senior sister did not notice that Xue Xi narrowed her eyes after she left, and quietly opened another panel, and quickly tapped the code on it.

-

Yu Da sat in front of the computer with a serious face.

The fingers tapped on the keyboard quickly, which made people look dazzling. He tapped a few times, and the person next to him heaved a sigh of relief: "Thank you for your timely arrival, I won't be able to hold it anymore!"

Yu Da did not speak, and continued to patch the loopholes to prevent others from attacking again.

With Yu Da, everyone breathed a sigh of relief, and couldn't help but start talking: "Is the opposite person alone? There are so many of us who can't resist him alone. It's simply awesome!"

"I don't know who it is, I think id is from abroad."

"Why should such top hackers hack into our intranet? To be honest, there are no secrets on the intranet. If it is breached, Huaxia University will be ashamed."

It is a great shame that a century-old college that specializes in training computer talents has broken the school network by one person.

Several people were talking, and suddenly a voice came out: "It's over, his attack is getting stronger! Hurry!"

"Oops, I was breached here!"

"Fuck, he was just a test. Now is the real offense. We can't defend it at all!"

"It's over, I'm also broken here!"

In the tense atmosphere, Yu Da was tapping the keyboard quickly, repairing various loopholes, and resisting the opponent's attack.

His face is solemn.

The opponent's offense was strong and unstoppable. He had been in the computer industry for so many years. Only the last time X attacked the school's surveillance system did he encounter such pressure.

However, the other party is not X, and every hacker has his own habits.

The other party was obviously a foreigner, but he felt a sense of helplessness that was about to surge like a flood.

It seems that the other party's power on the Internet is as unstoppable as the power of nature!

Yu Da struggling to tap the keyboard, trying to resist the opponent's impeccable strength with his weak body, knowing that this is a man-armed car, but he did not back down.

His eyes were sharp, and he watched the unstoppable water come over the sky, he closed his eyes in despair!

I thought that the network would be completely paralyzed and be directly controlled by others.

Unexpectedly, when I opened my eyes again, there was an invisible barrier to keep the flood out!

Not broken!

Yu Da was stunned.

He stared at the screen, and saw that the opponent's attack was not only not relieved, but was even more rush and domineering, but the barrier was firmly stuck there, giving people an infinite sense of security.

Yes.

Sense of security.

Although it seems to be only a thin layer, it seems like Mother Earth stretched out a gentle hand, silently blocking out all dangers.

who is it?

Who is this person who helped them? !

This kind of gentle but domineering feeling like a mountain...It's X!

Knight X!

Yu Da's eyes lit up, and he, who has long become an X fan, quickly check.

X is now fighting against foreign hackers and can't care about himself.

It was a good opportunity for him to come in.

He doesn't want to be so, just want to find out who idol x is.

He swallowed. Although he knew it was rude, he knocked on the keyboard rudely and searched for X's id, only to find that...this id address...is in the computer room! !

After seeing the camera address, Yu Da suddenly widened his eyes.

This, this is not...