compound因uni瞬间拉盘而产生66万美元的坏账

Last night, the price of the instant offer rose from US dollars to US dollars. This loan agreement allows users to mortgage other currencies. If the price is not updated in time for a short time after the instant offer, it can be borrowed with low-value collateral. After being discovered by a few people, the mortgage borrowed a lot and then sold it. Then you will find that the amount it obtained is actually more than the amount he mortgaged. Let me carefully analyze the number of attacks on the loan agreement. According to the source attack, there are the following four addresses that make profits. Now, if you look up the balance of these four addresses, you will find that in this agreement, all four addresses have a debt, but the collateral is almost zero. As the screenshot below shows, this address is mortgaged, but the collateral borrowed is almost zero, but the borrowed value is as high as ten thousand. In this case, this address will definitely not pay off this debt. The other three addresses all used almost zero collateral and borrowed hundreds of thousands of coins. These four addresses are tired. The whole attack logic is as follows: it is assumed that the price in the market is right at the moment, and the price in the market is normal, and then the price in the market suddenly exploded at the moment, but the price in the market was wrong or stayed, and then someone found the wrong price, and immediately mortgaged 10,000 to act as collateral and borrowed the money. You can borrow 10,000 yuan from the loan rate, that is, you can borrow 10,000 yuan, and then change this 10,000 yuan into the market, for example, because the market price is so that it can be sold more than the collateral. This is the profit. You can clearly see the logic above in this transaction. It is mortgaged, lent and sold, and then sold. After the correct currency price is fed into the agreement, these debts will definitely be liquidated, even if the liquidator takes all of them. The collateral will also leave a lot of debts, which is why the bad debts are wrong in price and price. At present, a vote has been initiated to correct this, because the price setting of coins is double insurance, one is the price, and the time-weighted average price is also used. But I didn't check how these two prices are chosen, but judging from the current results, the two prices must be normal at the same time to be normal. The price is normal when the price suddenly rises, but the agreement with the price problem gives the wrong price. 比特币今日价格行情网_okx交易所app_永续合约_比特币怎么买卖交易_虚拟币交易所平台

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