Dear member, there is a malicious person who obtained the mobile phone number and platform customary password from an unknown source, trying to log in to the YouBike member account, stealing riding data and committing fraud. In order to improve the strength of information security protection, the system has forced all members to log out , please use the "forgot password" function to reset the password (the password must contain 8 to 20 characters of uppercase and lowercase letters and numbers), and please do not use birthdays, phone numbers, or passwords that are easier to be cracked than those on other platforms as the new password.