According to AMBCrypto, bitcoin prices in the US cryptocurrency exchange Kraken fell sharply a few hours before the "Bitfinex and Tether (USDT) incident", triggering speculation that the market fell "early leaks". American cryptocurrency giant Kraken experienced a compelling bitcoin "sell", the price of the exchange's bitcoin fell below $5,000 before the New York Attorney General announced the news, and its price was 25 days Beijing time. It fell sharply around 00:00 in the morning, hitting a low of $4,357. However, there is no specific evidence that there is a correlation between the decline of the BTC on the Kraken exchange and the news to be announced, but it has caused many insiders to question. From the timeline, Bitfinex News was reported by the Wall Street Journal around 5:17 am on the 26th Beijing time. Bitcoin crashes on several exchanges occurred near 5:00-6:00 am on the 26th Beijing time. In terms of time, Kraken’s first sell-off occurred before the Wall Street Journal published the report, and before the mainstream exchange’s bitcoin fell below $5,200.