Reusing passwords turns a single data breach into many. Now that this  password is out there, hackers could use it to get in to other accounts.
重用同一个密码的后果是，当任意一处发生泄露，其他位置也因此陷入危险。而现在，这个密码已经暴露，黑客可能利用它“撞库”来攻破您的其他账号。