All users have passwords associated with their accounts, but passwords alone are not safe enough. They can be guessed or hacked using “brute force.” They can also easily be seen or stolen by someone around you. For this reason, we strongly recommend Two-factor authentication (2FA). Decoin holders can use Google Authenticator and bind the Google Two-Step Authentication to their account. Once users accounts are bound, even if their password is stolen, the user's phone or secret key is still required to log in to the account.
The Google two-step verification code is generated by the Google Authenticator on the phone, and the verification code is changed every 30 seconds. Each verification code can only be used once.