Webb and Langdon were confused, what happened to Sidney, who has always been calm and graceful, even if he didn't catch the hacker, he wouldn't be out of shape to this point, one moment yelling two, and then three again, I really don't know where these three attackers came from.

"Mr. Sidney!" Webb took a few steps forward, "what the hell is going on? How could there be three attackers!"

Sidney calmed down his mood a little, regained his aristocratic demeanor, and said slowly: "I really didn't expect that I usually only encounter one virtual attack in several months, but here with you, I actually encountered three masters of virtual attack at once. ”

Langdon frowned, "Didn't you say that the hundreds of previous attacks were all done by the same person?"

"Yes!" Sidney bowed, "The previous attack was indeed done by the same person, but I am talking about the attack just now, there were a total of three masters just now, all of whom are absolute super hackers!"

"Mr. Sidney!" Weber asked, "Can you elaborate on that?"

"To put it simply, first of all, the hacker we were going to catch came in, and he used exactly the same methods as before, so I quickly locked down his attack and began to restore and track his real location, but just as my analysis was about to come out, the second hacker came in! The first thing this hacker did after he came in was to drive away the first hacker, my tool was analyzing at this time, and suddenly lost the tracking target, the analysis would have failed, but the second hacker was too powerful, the second thing he did was to instantly disguise himself as the first hacker, so the tool re-locked the target and continued to analyze, but the conclusion reached was completely unbelievable. Sidney couldn't help but admire when he said this, "And the third hacker is even more powerful, he can actually perform reverse tracking and attack the computer in front of you and me in an instant!"

Weber was a little puzzled and asked, "Then why does it have to be three, the hacker who came in from the reverse invasion is likely to be the same person as the second hacker!"

Sidney shook his head, "No, the second hacker is also very good, but when he came in, my tool still detected his traces and sent an alarm. And when the computer in front of me was compromised, my tools didn't respond at all, if it wasn't for him deliberately revealing his tracks, we would never have found him, and we don't even know when he came in, maybe he's been in this machine for a long time!"

Although Langdon knew that hackers were powerful, but now hearing Sidney say this, it really felt like listening to heaven, "Can hackers be so powerful?", Langdon asked rhetorically, "It's unlikely!"

"Everything is possible, not knowing doesn't mean it doesn't exist!" Sidney looked incomprehensible, and after speaking, he actually took out the document bag from yesterday from his pocket, "This thing is returned to you, I really can't help you, the other party is too powerful, I am not his opponent, I can't catch the slightest trace of his invasion, and he can name my name, it is very likely that he already knows our actions well!Sorry!", Sidney finished speaking, and put the file bag on the computer desk," If nothing else, then I'll take my leave!"

"Wait!" Langdon stopped Sidney, picked up the document bag, and handed it back to Sidney, "This kind of information is of little value to us, we still have the second half of the information as agreed in advance, and I will send someone to you in a moment." It's just that I hope Mr. Sidney will answer me a question. ”

"You say!" Sidney looked at Langdon, the contents of the bag were very important to him.

"Is there really no way we can catch that attacker?" Langdon still didn't give up.

Sidney frowned and said, "Actually, it's not that it's completely impossible, it's just that I don't think it's necessary!"

"Why?" and Webb both looked at Sidney, not understanding what he meant.

"My tool has just captured the real data of the attacker, although it has not been analyzed, but the data that has been analyzed before will be backed up, you can try to find clues to the attacker from these data, maybe you can also find out the approximate location of the attacker, this is the only way!" Sidney said, paused, and said: " The reason why I say there is no need to do this is because there are two super masters who are deliberately protecting that attacker, you will never know his specific location, and even if you know his specific location, you will never be able to catch him, and the third attacker is free to enter and exit your network, what actions can you do to hide from him? The most important thing for you at present is to quickly upgrade the security measures of your own network, at least not to let others come and go freely as if they were visiting your own garden, and when you have done this, let's talk about catching hackers, otherwise it will be all empty talk, you have caught one today, and someone will attack tomorrow, when are you going to catch it? How many will you catch? Your current level of network security is simply inducing hackers to commit crimes!"

Sidney was not polite at all, he knew that super hackers generally don't do such boring things, and now that there are so many super hackers at once, it means that there must be a problem here, but Sidney doesn't bother to ask about the intelligence department, but he really doesn't care about the security measures here.

Weber hurriedly asked: "Please also ask Mr. Sidney to give me some guidance and see what we can do to prevent these super hackers!", Weber also knew for the first time that super hackers would be so powerful, he had always thought that although his network was not strong and unhurried, it was not as unbearable as Sidney said, but today's facts made him have to believe Sidney's words, there are some super hackers, they are indeed omnipotent, and they enter the critical network as chic as a leisurely stroll!

"There's no good way!" Sidney looked at Webb, "The most effective way to deal with super hackers is to install a policy-level firewall, but unfortunately you unsubscribed!"

Langdon clenched his fist, he didn't agree to return the product of the soft alliance at that time, but unfortunately the little arm can't resist the thigh, the person in charge wants to unsubscribe, and he can't help it, who knows that returning this product will cause such a big trouble.

"Is there no other way?" Weber was also a little embarrassed, and the above had already made it clear that the matter of the policy-level firewall should not be mentioned again.

Sidney shook his head, saying that there was no other way to do it, but he added, "One thing, you need to be careful, your servers may have been installed with surveillance software very early......

"Ah!!h

"Don't be too nervous!" Sidney motioned for the two of them to relax, "When I say monitoring software, I mean software that monitors virtual attacks, similar to the one I asked you to install earlier, and that's just a guess on my part. As you can see, the second hacker arrived just in time to help the attacker get out, so why was he able to know which server the attacker was on? This means that he installed some kind of monitoring software in advance. ”

Even if Sidney said this, the two were still very surprised, since the hacker can install software to monitor virtual attacks on the server, then it is not difficult for him to install any other programs, and everything is still unaware, if Sidney didn't break it, he wouldn't have thought of it.

"Could it be that the second hacker and the attacker met, and they discussed it?" Weber asked, this possibility is also there, he is still unwilling to accept this reality, which is too big a blow to the entire network security department!

"It's hard to say whether you know or not, but one thing you have to know is that as long as the second hacker can give a little guidance, then the attacker is not afraid of being tracked down at all, he can be as versatile as the second hacker, and the second hacker doesn't have to bother so much to help the attacker get out. After Sidney finished speaking, he looked at the time, "Okay, I've said everything I need to say, I'm a little sleepy, I'll go first! I won't leave Country F today, you can come to the hotel to find me if you have something!"

With that, Sidney walked straight to the elevator, ignoring the two men.

"What now?" Webb looked at Langdon, a little out of ideas.

Langdon frowned, paced around twice, and suddenly saw the book that Sidney had left on the table, so he said: "You arrange people first, immediately go to all the servers to check, see if there is anyone installed monitoring software, and then talk about what to do after figuring it out!", After speaking, Langdon picked up the book from the table, "I sent the book to Sidney, and by the way, I will ask for advice, now we can only count on him!"

As soon as he got to work the next day, Liu Xiao got out of the elevator and asked the reception MM at the door, "Has the business director arrived?"

"Here we are! I saw her go in!" replied MM.

"Okay!" Liu Xiao nodded in response, then entered the company, walked directly to Shang Yue's office door and knocked on the door.

"Come in!" Shang Yue shouted, looked up and saw that it was Liu Xiao who came in, so he stood up, "Is there something wrong?"

"It's okay!" Liu Xiao waved his hand and took out a USB flash drive, "I made a small program from somewhere else yesterday and gave it to you to play with!"

"What program?" Shang Yue was a little surprised.

"It's a tool used to track down virtual attackers, you must know the author, it's that aristocratic hacker Sidney!" Liu Xiao smiled, "Okay, I'm leaving, there are still a lot of things!"

Shang Yue's face immediately changed, and this did not escape Liu Xiao's eyes at all. Liu Xiao thought about it, and felt that Shang Yue was still the most likely to go, he didn't try anything last time, and he finally tried a little flaw today, but he didn't say anything, smiled and pulled the door and left.

Shang Yue waited for Liu Xiao to leave, then picked up the USB flash drive and looked at it, secretly wondering in his heart, could it be that he secretly went to take revenge on country F, and Liu Xiao knew about it? But what is the matter with this tracking program, why does Liu Xiao show this to himself, and what does it have to do with himself?

After thinking about it, Shang Yue took the USB flash drive into the laboratory, installed the program on one machine, and then used a virtual attack from another machine to attack, just listen to the machine over there start to tick the alarm. Shang Yue was a little surprised, so he threw down the machine and walked over, so he saw the interface displayed by the software on the machine, "Dismantling the virtual data packet!" "......"

Wait until the end, a display will pop up, "The attacker's real location has been locked, the LAN machine, and the IP address is: 192. 168。 0。 121”

Shang Yue couldn't help but "ah", he had just virtualized the attack source into a portal, how could this thing still restore the real attack source, how could it be possible, there was no reason for a virtual attack to be tracked!

"Ahh Last night, Liu Xiao went to the server in country F to muddy the waters, who knew that as soon as he entered the server, Shang Yue's phone rang, it was a friend who had not been in touch for a long time, Shang Yue answered the phone, and made a big mistake that hackers are most taboo, she talked about it, and she forgot about the attack, and she did not withdraw from the server.

When she remembered it later, she quickly hung up the phone and went back to the computer to take a look, only to find that her connection to the server had been broken, and she was still wondering what was going on. After thinking about it, Shang Yue felt that it might be that the server suddenly restarted, which caused the link to fail, because she felt that it couldn't be other reasons, in her opinion, the virtual attack was impossible to be discovered, and the real link would not be traced.

Looking at it now, Shang Yue knew that he was wrong, at least this Sidney knew how to track the virtual attack, he was no longer the guy who could only attack but not defend at the Black Hat Conference half a year ago. But how could this thing fall into Liu Xiao's hands?

Shang Yue could only think of Liu Xiao taking this thing, because he wanted to tell himself that virtual attacks were not omnipotent, and there were shortcomings, but Shang Yue just couldn't figure out why Liu Xiao used Sidney's things to tell him this, he knew that he was very disgusted with Sidney.

"No!" Shang Yue turned off the computer, and then went to Liu Xiao's office, she had to ask clearly.

Liu Xiao was answering the phone, and when he saw Shang Yue coming in, he motioned for her to sit down and wait for a while.

"What the hell is going on with that thing, where did you get it?" As soon as Liu Xiao put down the phone, Shang Yue stepped forward and asked.

"I said you can't sell me!" Liu Xiao looked at Shang Yue and smiled, "I got it from the server of the president of country F's website." ”

When Shang Yue heard this, he hurriedly asked, "Was it last night?"

Liu Xiao nodded, then opened the drawer and took out another CD, "I won't say anything else, I know you're avenging me, on this CD, it's some of my research conclusions on virtual attacks, and you destroyed the disc after you read it." Remember, don't do this again! I've been kidnapped by them, you're anxious, I know, and I can understand it, but hackers are never absolutely safe, and if you put yourself in it, then I'll blame myself and even feel guilty in addition to being anxious, do you understand?"

Shang Yue didn't speak for a long time, and stood and looked at Liu Xiao for a long time, "I'm sorry, I'm causing you trouble!"

"Nonsense!" Liu Xiao stood up and slapped the disc in Shang Yue's hand, "Then when I was tied up, did you think that I had caused you trouble!"

"No!" Shang Yue hurriedly shook his head.

"That's not right!" Liu Xiao smiled and patted Shang Yue on the shoulder, "Between us, there is no such thing as trouble! In fact, as soon as something happened in country F, I thought that you did it, but I'm not sure, you never said that you knew how to do virtual technology, if you knew that you could do virtual technology, you wouldn't have been able to make this incident!"

Shang Yue didn't know what to say, and it was really embarrassing for Liu Xiao, he was afraid that he was always staring at the situation over there for the past few days, just to prevent himself from being tracked down, which was more difficult than him going directly to take revenge, "I ......"

"Okay, no need to say it!" Liu Xiao smiled and sat back in his office chair, "You wait, wait until I finish the business on my hands in the past few days, and see how I clean them up." ”

"Then be careful!" Shang Yue was nervous, "They've got Sidney!"

"A Sidney, I haven't put it in my eyes yet!" Liu Xiao smiled, "Okay, you should hurry up, I'll pack up the materials, and I have to go to the city government, they have a meeting today, whether our project can be finalized depends on today!"

Langdon stood dejectedly at the door of the person in charge and shouted "Report!"

"Come in!", the voice of the person in charge came from inside, and Langdon pushed the door open and said, "General!"

"Langdon, sit!" The person in charge glanced up, motioned for Langdon to sit down and speak, and continued to get busy with his work, and asked, "Is there any news from Sidney's side?"

Langdon didn't sit down, and when he heard the words of the person in charge, he said, "General, I have something to report to you!"

"Say!" the person in charge was still busy with his work.

"It's about the hacking of our intelligence department's website yesterday!" Langdon paused, "Security experts have come to the conclusion that the attacker is not from China, but from country D!"

"What?" the person in charge finally put down what he was doing and looked up at Langdon, "Those experts are not mistaken?"

"It can't be wrong, this conclusion is supported by Mr. Sidney!" Langdon looked at the person in charge, "General, someone deliberately wants to see our jokes!"

"Smack!" the person in charge slapped the table and stood up, with a hint of anger on his face, "Bastards, these guys know how to rob while the fire is hot!"