Upbit Hack: What, When, and How?

web3author
Web3coda
Published in
3 min readJun 19, 2023
source: https://upbit.com

On November 27, 2019, Upbit, a South Korean cryptocurrency exchange, fell victim to a major hack that resulted in the loss of 342,000 ETH, which at the time was worth approximately $50 million. This attack was one of the most significant in the history of cryptocurrency exchanges, and it exposed the vulnerability of even the most prominent players in the industry. In this blog, we will explore what happened during the Upbit hack, when it occurred, and how it was executed.

Introduction

Upbit was established in 2017, and it became one of the largest cryptocurrency exchanges in South Korea in only two years. This exchange allowed South Korean investors to trade various cryptocurrencies, including BTC, ETH, XRP, and BCH, among others. Moreover, the exchange enjoyed the backing of Kakao Corp, a leading South Korean technology company that operates a wide range of mobile applications and digital content platforms.

What Happened During the Upbit Hack?

On November 27, 2019, Upbit detected unusual transactions in its Ethereum hot wallet, which contained approximately $350 million worth of ETH. The exchange immediately suspended deposits and withdrawals, and it initiated an investigation into the matter. A few hours later, the exchange released a statement acknowledging that one of its hot wallets had been compromised, and that the hackers stole 342,000 ETH, which at the time was worth approximately $50 million.

When Did the Upbit Hack Occur?

The Upbit hack occurred on November 27, 2019. This attack took place during a time when cryptocurrency exchanges were experiencing heightened levels of regulatory scrutiny, and many institutions were seeking to enhance their security measures. Therefore, the Upbit hack was a stark reminder that even the most reputable exchanges are not immune to the threat of cyber attacks.

How Was the Upbit Hack Executed?

The Upbit hack was executed through the theft of the exchange’s Ethereum hot wallet. This wallet was used to store the exchange’s ETH reserves, which were needed to facilitate the trading of this cryptocurrency. Therefore, the hackers targeted this wallet as it represented a significant target that could yield a large amount of funds. It is believed that the hackers used a combination of phishing and malware attacks to gain access to the wallet’s private keys.

Impact of the Upbit Hack

The Upbit hack had a significant impact on the cryptocurrency industry. Firstly, it resulted in the loss of a large amount of funds, which had an adverse effect on the exchange’s users. Secondly, it caused a loss of confidence among investors, which led to increased scrutiny of the security measures implemented by cryptocurrency exchanges. Lastly, the Upbit hack highlighted the need for more robust security measures in the cryptocurrency industry, which would help to prevent such attacks from occurring again in the future.

What Lessons Can We Learn from the Upbit Hack?

The Upbit hack exposed several weaknesses in the security measures implemented by cryptocurrency exchanges. Therefore, it provides valuable lessons for institutions operating in this industry. Firstly, exchanges must implement multi-factor authentication measures to prevent unauthorized access to their systems. Secondly, they should conduct regular security audits to identify vulnerabilities in their systems. Lastly, exchanges should store their users’ funds in cold wallets, which are not connected to the internet and are therefore less susceptible to cyber attacks.

Conclusion

The Upbit hack serves as a reminder that cryptocurrency exchanges are not immune to cyber attacks. Therefore, institutions operating in this industry must implement robust security measures to protect their users’ funds. Moreover, regulatory authorities must require cryptocurrency exchanges to comply with stringent security standards, which would prevent such attacks from occurring in the future. The Upbit hack was a watershed moment in the cryptocurrency industry, and it highlights the need for collaboration among institutions to build a more secure and resilient ecosystem.

References

  1. Upbit Hack 2019: Lessons that can be learned from a Korean crypto heist.
  2. South Korean Cryptocurrency Exchange Upbit Hacked, $50 Million in ETH Stolen.
  3. Upbit lost $50 million due to a hack.

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