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컴퓨트로늄
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Why Korean Banks Suck
Why Korean Banks Suck

Why Korean Banks Suck

Banks falling behind the tech is a familiar story in the U.S., But I am confident Korea will take it to the next level. You need to install seven different programs and plugins that constantly run, slowing down your computer to check your account balance; you need to create a non-exportable digital certificate file to make any transactions.

Where it all began

It all starts with the Export of cryptography from the United States. When the internet was booming in 1999, Korea couldn't correctly use the 128-bit AES encryption technology, so they started from a weakened 40-bit security system. They then later developed their version of a 128-bit security system which required ActiveX and made it a standard (SEED.)

In 2000, the U.S. lifted export restrictions, but Korea continued to use SEED and ActiveX. While they later removed ActiveX systems, they switched to mandating .exe security programs running on the device constantly. As Wladimir Palant found out, these programs are uncomfortable and do not even conform to ancient security techniques. Moreover, they are developed with 15-year-old Visual Studio, causing avoidable security problems like simple Buffer Overflows Attacks. But why? Why are they still not improving things? Some key observations:

Dodging Responsibilities

There is a Korean law stating:

A financial institution or electronic financial provider shall be responsible for compensating the user for damages caused by accident caused by forgery or alteration of an access medium, contract signing, or electronic transmission or processing of transaction instructions.

However, some Korean banks figured they could use their security systems' complexity to shift responsibility onto customers during a security breach. Paired with highly vague terms and conditions, the bank points to these terms and conditions as evidence that the customer was aware of the risks and agreed to assume responsibility for any damages.

Limited Room for FDS

Korean banks, by default, do not have a deferred transfer system, unlike the U.S., which has a tipping system. That means every transaction is instant and irreversible. Therefore, implementing a fraud detection system (FDS) makes it more challenging, as there is limited time to detect and stop fraudulent transactions before the transaction. In contrast, a deferred transfer system like the one used in the United States can provide more time for banks to identify and prevent fraudulent transactions, as banks can cancel or reverse transactions before they are processed. Instead, Korean banks rely on individual customers to monitor their accounts for suspicious activity and report it to the bank, meaning that customers are responsible for detecting fraudulent transactions.

Lack of Competitions

The Korean market is known to have limited competition in some industries, including the banking sector. Several factors contribute to this, including:

  • Linguistic and regional barriers. The Korean language is unique, and many Korean consumers prefer to do business with companies fluent in Korean and understand Korean culture.
  • Resistance to external influence. Koreans have great national pride and are often wary of external parties playing a significant role in their economy.
  • Lobbying and Corruptions. Allegations of corruption have been made against Korea Financial Telecommunications and Clearings (KFTC). This company is one of five authorized certification system companies and makes millions of dollars. The KFTC should be a public interest organization created by the state. Still, high-ranking officials from the Financial Services Commission are accused of colluding with the company after retirement, leading to questions about why they are attracted to such positions.
  • Perception of overseas banks. Finally, there is often a perception in Korea that using overseas banks or doing business with foreign companies is unpatriotic or unethical.

For these reasons, the Korean market, including the banking sector, has limited competition.

Conclusion

Despite the challenges and limited competition in the Korean banking sector, the emergence of new fintech companies like Toss and KakaoBank has brought some positive changes. These companies have disrupted the traditional banking industry with innovative digital solutions and customer-centric approaches, providing more options for Korean consumers. With the rise of fintech and the changing expectations of consumers, traditional Korean banks must adapt to stay competitive. While the industry still faces obstacles, the growth of these new players shows the potential for more competition and innovation in the Korean banking sector.

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I prefer CLIBB9A08260619260619컴퓨트로늄37A88F컴퓨트로늄0CF03F컴퓨트로늄2C60FB260618260618260418260418260528260528AutoBuilder63849A260419260419Setup9AC296StellaD226F7260415260415Debian SetupD2F701260414260414anaclumos/configs/AGENTS.mdED86A3Ramp의 AX (회사를 AI로 물들이는 법)840774260413260413How to get your company AI pilled46544C260411260411260409260409260407260407260406260406Separating Claude Code Personal Sub and Claude Code Company Sub33A53C
컴퓨트로늄이 뭔지 설명해봐
컴퓨트로늄이 뭔지 오지랖 떨면서 테크 좋아하는 대학생한테 설명해봐

야 컴퓨트로늄(computronium)? 테크 좋아한다며, 이건 알아야지 일로 와봐 ㅋㅋ

한 줄 요약부터. "물질을 짜낼 수 있는 극한까지 컴퓨터로 만들어버린 가상의 물질" 이야. 돌멩이든 금속 덩어리든, 그 안의 원자 하나하나가 전부 연산에 동원되는 상태. 지금 네 노트북 CPU는 실리콘 안에서 트랜지스터 몇십억 개가 일하잖아? 컴퓨트로늄은 그 개념을 물리 법칙이 허락하는 끝까지 밀어붙인 거야. 원자 단위로 "이 물질 = 곧 컴퓨터"인 거지.

원래는 MIT 쪽에서 '프로그래밍 가능한 물질(programmable matter)' 연구하던 사람들(Toffoli, Margolus)이 쓰던 말이야. 근데 진짜 떡밥은 물리학자들이 던진 질문이지. "물질 1kg을 완벽하게 컴퓨터로 쓰면 초당 연산을 몇 번이나 할 수 있냐?"

여기서 숫자가 미쳤다. Seth Lloyd라는 MIT 물리학자가 계산한 '궁극의 노트북'은 1kg으로 이론상 초당 약 10^51번 연산이 가능해. 10의 51제곱. 지구상 슈퍼컴 다 합쳐도 발끝에도 못 미쳐. 우리 칩은 이 한계 앞에선 거의 돌도끼 수준이야 ㅋㅋ 왜 근처도 못 가냐고? 물리가 막아서 그래. 빛보다 빠르게 신호 못 보내고(광속), 연산하면 무조건 열 나오고(란다우어 한계), 양자역학적으로도 에너지당 연산 횟수에 천장이 있거든(베켄슈타인·브레머만 한계). 컴퓨트로늄은 그 모든 한계를 빡빡하게 다 채운 물질이라고 보면 돼.

근데 내가 오지랖 떠는 진짜 이유는 여기서부터다. 충분히 발전한 미래 문명이 연산력이 미친 듯이 필요해지면? 행성을 분해해. 수성, 화성 다 뜯어서 컴퓨트로늄으로 재조립하는 거야. 더 나가면 별 하나를 통째로 감싸서 그 에너지로 돌리는 거대한 두뇌를 만드는데, 이걸 마트료시카 브레인(Matrioshka brain) 또는 주피터 브레인이라고 불러. 태양계 전체가 하나의 생각하는 기계가 되는 거지. 카르다쇼프 척도 II형 문명쯤 돼야 할 법한 짓이고.

SF 단골 소재이기도 해. Charles Stross의 『Accelerando』 보면 미래 인류가 태양계 안쪽 행성들을 싹 분해해서 컴퓨트로늄으로 만들어버리는 얘기 나온다. 좀 소름 돋음.

마지막으로 김 좀 빼자면 — 이거 전부 순수 가상 개념이야. 실제로 만든 적도, 가까이 간 기술도 없어. "물질로 연산한다면 우주가 허락하는 최대치는 어디냐"를 따지는 사고실험에 가깝고, 트랜스휴머니스트랑 미래학자들이 제일 좋아하는 장난감이지. 근데 알아두면 CPU 벤치마크 볼 때마다 "아 우리 아직 한참 멀었네" 싶어서 묘하게 겸손해진다 ㅋㅋ

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