66. Seon Seventeen
In-cheol said to the major’s sister.
“What kind of paper did the hacker steal from your computer?”
The major older sister explained in the easiest way possible so that high school student In-cheol could understand it.
Also… !
As a professor, the level of explanation is different.
It seems that I am not the only one who was surprised by my sister’s explanation.
Because Yunseok hyung was also nodding his head with exclamation.
When my sister’s long explanation was over, In-cheol also nodded with a serious expression and said:
“After listening to the professor’s explanation, I think it is a really important thesis.”
The older sister had a proud expression on her face, and In-cheol continued.
“When I fell asleep while studying, that part was always on the exam, and since I fell asleep a while ago, I think this is a really important thesis. haha!”
At In-cheol’s words, the major’s older sister smiled sadly, and In-cheol held out a piece of paper to the major’s older sister and said:
“There is a paper that the hacker published with the stolen content. Could you please write some information about the thesis here?”
Major older sister organized the title, journal, and page information of the thesis and gave it to Incheol.
“Professor, are there any other files the hacker wants to steal from your computer?”
“Well, I don’t know, do you?”
What files David McLean is aiming for?
Suddenly, it occurred to me that he might be aiming for my sister’s next thesis.
I told Incheol.
“Perhaps if there is another thesis that your sister is preparing, you will want to take the draft file of that thesis again, right?”
In-cheol nodded at my words and said to the major older sister.
“Professor, will you please give me one of the draft thesis files?”
“Are any files okay?”
“Well… How long does it take to prepare a draft of a thesis?”
“About a month or so?”
“Then give me the draft file you made a month ago.”
After a while, the major older sister handed In-cheol a diskette, and In-cheol checked the files on the diskette and said,
“WPD? What file is this?”
My sister answered Incheol’s question.
“Word Perfect is a document file that is not used in Korea. Do I need to prepare another file?”
“No, it’s okay. As long as this file opens properly on the hacker’s computer, you’ll be fine.”
So In-cheol started working on his computer, and asked the major’s sister various questions about the thesis that David McLean had stolen.
After about 20 minutes, Incheol returned the diskette to his sister and said,
“Hmm… Now I have to rename this draft, isn’t there a name that makes the hacker crazy out of curiosity?”
“… ?”
“So when the hacker sees this file, it’s a title that makes 100% clicks.”
“Why?”
At the sister’s question, In-cheol smiled and said.
“It’s fishing.”
It’s a crazy title that David McLean wants to see… .
Does such a thing really exist?
I started rechecking my memories of him in my past life.
David McLean’s major is topology.
A problem that mathematicians who majored in topological mathematics should challenge at least once is the Poincare conjecture.
This is because, unlike other math challenges that require a lot of preparation from the start, the Poincare conjecture does not have a high barrier to entry.
David never spoke to me directly, but I’ve heard from his student Mike Schultz that David was also interested in the Poincaré conjecture.
Having said that, it seems that both David and Mike were very interested in the Poincare conjecture, which was the subject of my research at the time.
I told my major sister.
“If David McLean majored in topology, I think he could do it with a title related to the Poincare conjecture.”
“Oh oh! That’s a good idea. So what title would you like?”
“Well… How about the title ‘Complete proof of surgical Ricci flow at singularities’?”
In our language, it is ‘a complete demonstration of the surgical technique of rich flow in singularities’.
read at noblemtl.com
Now in 1998,
Thanks to the rich flow theory, the proof of the Poincaré conjecture is about 95% complete.
In other words, there is one final piece left to complete the proof, which is the application of the rich flow theory at singularities.
In topology, a singularity is a point where the curvature becomes infinite because it is sharp like a needle or extremely thin like a thread.
Because the rich flow theory cannot be applied to this singularity, the method devised by mathematicians is the surgical technique.
yes right
When it comes to surgery, it is the same word as surgery.
They cut out the singularity of the continuum and operate on the rich flow theory to apply.
Proving that this surgical technique is mathematically correct is the final piece of completing the Poincare conjecture, and is the content of a paper published by Perelman in 2002.
My sister laughed at my suggestion and said.
“Hey! is that huge? If you don’t open this file even after seeing the title, you’re not a topology major. haha!”
The older sister continued talking to Incheol.
“The file name has been changed. What should I do now?”
“Later, connect your computer to the Internet and open the file again. Then I use the LaTeX Equation Editor to enter this formula and save it.”
The formula Incheol pointed to with his finger was the basic formula for Yoon-Schultz theory written by Yoon Seok-yi.
In other words, it was a formula that triggered the malicious code that David McLean had planted on his sister’s computer.
ah… !
I think I know what Incheol is trying to do.
Incheol is trying to hack David McLean’s computer.
When my sister opens the ‘Complete proof of surgical Ricci flow at singularities’ file, enters the trigger formula and saves the file, this file is sent to David McLean.
And the moment David McLean opens this file, the malicious code that Incheol put into this file is planted on David’s computer.
The malicious code planted in this way will send the information on David’s computer to Yoon Sung Soft’s server, and through the received information, it is possible to secure evidence that David stole the thesis from the major’s sister’s computer.
In other words, to prove David McLean’s hack, we also hack his computer. Can the data obtained in this way be used as legally valid evidence?
Maybe we too should be held responsible for hacking David McLean’s computer.
I’m not familiar with US Internet security laws, but it doesn’t seem like a very good idea.
I carefully opened my mouth towards Incheol.
“In-cheol-ah, I think I know what you are thinking, isn’t this dangerous for us too?”
Incheol smiled at me and said.
“don’t worry. I’m not doing anything bad.”
And In-cheol continued talking to the major older sister.
“Professor, I will explain in detail what to do next.”
“Okay.”
“You must not enter the trigger formula, close the file, and then open it again.”
The older sister nodded, and Incheol continued.
“If we succeed in catching the hacker, it will probably be a few days before the professor will be contacted… … .”
At that time, the phone rang in the office, and Yoon Seok-yi hyung answered the call.
“Yes, this is Yunseok Jo from Yunseong Soft.”
In an instant, his expression brightened up brightly,
Yoon Seok-yi hyung hung up the phone with a thank you.
“Hey Jeongho! Now, I got a call from the Seoul Metropolitan Police Agency, and they told me that it was possible to sign a contract for the missing child program.”
Most of the companies that supply to government agencies make contracts through competitive bidding.
The fact that private contracts are possible means that the National Police Agency has decided on Yoon Sung Soft as a contract target.
“Wow! That’s great!”
Yoon Seok-yi hyung said in an excited voice at my words.
“But I have more good news!”
“Oh my! What?”
That was then.
In-cheol came out and said to Yoon-seok-hyung.
“You two bosses! I’m giving an important explanation to an American professor right now, but I can’t concentrate because I keep talking about increasing my work load.”
At In-cheol’s words, Yoon-seok-hyung smiled and said.
“ha ha ha! Sorry.”
My brother turned his head to me and said.
“Jeong-ho, let’s go out and talk.”
Yoon Seok-yi hyung, who left the office, opened his mouth.
“There is an Internet security program we are developing. We decided to sign a contract together.”
Yunseong Soft’s main business is an Internet security program and a vaccine program.
However, in the case of Internet security programs, since the market is small and the demand is not yet large, we were focusing on V-Stop, a vaccine program.
But what Yoon Seok-yi hyung really wanted to do was a security program business.
So this time, while preparing a contract with the National Police Agency, Yoon Seok-yi and I had a unified opinion in the direction of supplying Internet security programs rather than earning money through the missing child program.
Looking back, Yoon Seok-hyung is good at negotiating.
It seems that you are being attracted to the other person, but the important thing is that you have the ability to push it in the direction you want it to go.
I said to Yoon Seok-yi hyung, who had not yet lost his excitement.
“Brother, congratulations. Now I need to create a name for the security program.”
“Actually, In-cheol has already made up his name.”
“ah… ! okay?”
“Yes, Michael Security. I’m fine, how about you?”
For reference, Michael is Incheol’s baptismal name.
“Well, it’s not bad. haha!”
“We were going to talk about the specific terms of the contract next week, would you like to come along?”
I wanted to see Yunseok negotiating.
I nodded and said.
“Yes, I want to go with you.”
“And since this is a police station computer system, identification is required. You, me, and Incheol, I have to send the personal information of these three people over there, okay?”
“sure!”
At that moment, the office door opened and the major sister came out, and Yoon Seok-yi hyung pointed to her bag and said,
“Senior, do you want to go already?”
“Sorry. I have an appointment in the evening, so I have to go now. It is already very late.”
“What did In-cheol say about your senior computer being hacked?”
“In Chul’s words, the probability is half and half. But I think David McLean, we can get this bastard.”
“If you look at it that way, In-cheol is the solution. haha!”
I said to the major sister with a slightly worried expression.
“Noona, hacking is basically considered illegal. So American law, ahhh… !”
My cheeks were already caught by my sister.
My sister said as she pulled my cheeks back and forth.
“Fish oil, Chae Jung-ho! While I was in America, I became a very nagging demon king!”
The older sister smiled and continued.
“Still, the only people who worry about me the most are my grandmother and Chae Jung-ho. thank you.”
The older sister continued talking to Yoon-seok’s older brother.
“I have to pay for today’s work, but before I go back to America, let’s all have a meal together.”
“Okay, senpai.”
“In-cheol doesn’t eat pizza or anything, so the menu has already been decided on pizza, is that ok?”
Yoon Seok-yi hyung said at the words of his older sister.
“sure! In-cheol is what he gets, and he eats what he wants to eat!”
“Then shall we set a date now? How about tomorrow or the day after tomorrow?”
“I’m fine with both, senpai.”
I said scratching my head.
“I like the day after tomorrow. I have another appointment tomorrow.”
Tomorrow is the day of the executive meeting at Balhae Sports.