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Recently, hackers compromised BNB Chain , 　　the public chain of the crypto exchange Binance , causing the world's largest cryptocurrency exchange to lose about $566 million worth of crypto assets.

　　Binance officials said that hackers  discovered a contract loophole in BNB Chain's cross-chain bridge "BSC Token Hub", bypassed the BNB chain's contract detection , and obtained encrypted assets by issuing additional Binance Coins (BNB).

　　BNB is a cryptocurrency owned by Binance. On October 7th , hackers used the cross-chain bridge vulnerability to obtain a total of 2 million BNB in two phases, with a total value of about $566 million.

　　According to the analysis of the Ouke Cloud Chain security team, this method of issuing additional tokens out of thin air will have the same impact on the current market as the theft of assets, and even require the majority of users to pay for the security incidents of the project party. .

　　After the theft, Changpeng Zhao, the founder of Binance, responded on social media that the operation of the relevant platform has been suspended immediately, promised users that the funds are safe, apologized for the inconvenience, and will continue to update the follow-up progress.

　　On October 8 , BNB Chain announced that it had resumed operation . However, some users reported that the transfer of funds on the platform was still not smooth. In this regard, BNB Chain stated that the repair work is still in progress, and there may indeed be a delay in the operation of user accounts.

　　Jiemian News consulted industry data released by multiple platforms and found that the growth rate of theft cases on cryptocurrency platforms has accelerated this year.

　　Recently, the FBI issued a security bulletin, saying that more and more hackers are exploiting security vulnerabilities in cross-chain and decentralized financial platforms (Defi) to steal cryptocurrencies. of cryptocurrencies were stolen, 97% of which came from decentralized finance platforms.

　　According to data from blockchain analysis platform Chainalysis, in the first half of this year, the value of cryptocurrencies stolen by hackers from crypto platforms has reached 2.2 billion US dollars. year.

　　According to data from the Web3 security assessment platform CertiK, in the first and second quarters of 2022, the Web3 field was severely attacked by hackers, causing losses of US$2 billion, exceeding the losses caused by attacks in the whole of 2021. Among them, the five major cross-chain platforms were affected by the attack, with a loss of more than 1.317 billion US dollars, accounting for about 57% of the total loss of Web 3 this year.

Binance　　has stolen assets worth 570 million US dollars, which is known as the worst hacking incident in the crypto circle in recent years. In fact, there have been news that the crypto exchange was hacked . Published that its DeFi unit was hacked, resulting in a loss of $160 million to the company.

　　The constant news of the hacking will undoubtedly affect the confidence of crypto investors.

　　Wang Shiqiang, a senior researcher at Bingjian Science and Technology Research Institute, told Jiemian News that the impact of cryptocurrency theft on investors is relative. If it only happens once or twice, the exchange will upgrade technology to eliminate loopholes, and the impact on investors will be small, but If the theft occurs frequently, investors are more worried, which will withdraw from the market and even cause the cryptocurrency to crash.

　　Erin Plante, vice president of investigations at Chainalysis, said: “Decentralized finance platforms have introduced a whole new platform for hackers to easily access, which puts a lot of pressure on the crypto market and limits possible innovation.

　　At present, the crypto industry is in a bear market. The volatility of the cryptocurrency itself is already very high, and the risk of hacking is also increasing. How can exchanges protect the confidence of investors?

　　Wang Shiqiang believes that the increase in the number of hackers theft shows that the decentralized financial platform is also facing the phenomenon of "the road is one foot high and the devil is one foot high". In layman's terms, the increase in the number of successful thefts is not necessarily due to the lack of risk prevention and control capabilities of encrypted exchanges. The main reason is that the hacking technology has been upgraded, making the original secure trading system less secure, or even loopholes.

　　“ Therefore, crypto exchanges need to be equipped with more technical teams, especially security personnel, to regularly update security measures, plug leaks in a timely manner, and prevent hacker intrusions. Only in this way can risks be controlled and investor losses minimized.”