On November 18th, OneKey Security Labs issued a security alert, and multiple Dexx trading platform users reported abnormal login attempts in their account-linked mailboxes. OneKey advises users to take immediate security measures, especially users who log in to Dexx and mailboxes with the same password: 1) Immediately change all Web2 account passwords using the same password; 2) Completely abandon password combinations that may have been leaked; 3) Pay special attention to the security of email accounts containing sensitive information and associated with multiple authentication.