Tether freezing mechanism has been exposed to delay, causing assets of more than $78 million to be stolen

PANews reported on May 15 that according to Decrypt, blockchain forensics company AMLBot released a report stating that since 2017, Tether has caused a total of US$78.1 million in assets on Ethereum and Tron chains to be transferred by malicious users due to delay vulnerabilities in the USDT address freezing mechanism. The vulnerability originates from the multi-signature architecture used by Tether, resulting in a critical time difference between initiating a freeze request to on-chain execution (one example is 44 minutes), providing a "money laundering window" for criminals to transfer assets. Security company PeckShield confirmed the vulnerability is true and suggested that Tether optimize the freezing process to improve execution efficiency.