According to PANews, a security issue identified by BlockSec Phalcon Alert has resulted in a loss of approximately $90,000 on the Base chain. The problem stems from insufficient access control, which allowed arbitrary low-level calls within a callback function. It is advised to immediately revoke all approvals for the unknown contract at address 0xD9f4a3238154ff6439e37F98c9B11489353715Bb to prevent further losses.