At 12:06 today, Chengdu chain security situational awareness system Beosin-Eagle eye detected that the Ethereum Upbit Exchange hot wallet address transferred more than 340,000 ETH to an unknown address through a transaction. After the hacker transferred 342,000 ETH, only 111.3 ETH remained at the address, which was almost empty. At 13:18 Beijing time on November 27th, Upbit TRON address TDU1uJ transferred TRON coins in batches to addresses starting with TA9FnQrL, totaling more than 1.16 billion TRON coins and 21 million BTT. At 13:02 Beijing time on November 27th, 8628959 EOS were transferred from the Upbit EOS wallet address to the Bittrex exchange; at around 1:55 on Beijing time on November 27, more than 152 million XLMs were transferred from the Upbit exchange to Bittrex trading. By. According to our further analysis, it is believed that the transfer of EOS, XLM, and TRON tokens is likely to be a hedging operation by the exchange to trigger the risk control mechanism, and data show that Upbit and bittrex are cooperative relationships. Therefore, large amounts of EOS and The transfer of XLM to the Bittrex exchange may be Bittrex's assistance in avoiding risks.