According to Odaily Planet Daily, Neo officially released a message to update the security incident that occurred on February 8, 2023. A security vulnerability occurred in the Neo migration address, resulting in unauthorized token transfers to three different addresses. The Neo Council responded quickly and blocked these addresses using the "BlockAccount" method in the local Policy contract to prevent further transactions. The attacker exchanged various tokens including fUSDT, FLM, fwBTC, fwETH and pONT for a total of 223,461 NEO through the Flamingo platform. On February 13, 2023, the hacker contacted the Neo team for a ransom, but the negotiations broke down and the three addresses have been locked. After investigation, Neo Global Development (NGD) found that the fwBTC supply had been exhausted due to the attacker's early unauthorized conversion. After a technical assessment of the security of the assets and consultation with Neo Council members, it was agreed to unlock the wallet address (NiFtgekYY6KY1XxwahVAyMtgX1WoJkrQXd). The Neo Foundation used partial private key information provided by the attacker to execute a series of transactions designed to reverse the unauthorized conversions and restore the affected tokens (fUSDT, FLM, fwBTC, fwETH, and pONT) to facilitate the completion of all pending migrations.