When the two-factor authentication is enabled, the sign-in to the ONLYOFFICE account process will work a little bit differently and include two steps:
- Step 1 - Enter your credentials: email and password as usual.
- Step 2 - Enter a six-digit verification code received via SMS.
The sent code is valid for 10 minutes. To resend a verification code, use the Send code again button, but no more often than 5 times per 5 minutes.
When you access your ONLYOFFICE account for the first time after enabling the two-factor authentication, you will need to perform one more step: Specify the phone number you wish the SMS to be sent at. If necessary, you will be able to change it later at any moment on your profile page.
To make the sign-in process more simple, ONLYOFFICE offers the possibility to remember that a particular browser was already successfully used for the two-factor authentication. So when you access your ONLYOFFICE account for the second time using the same browser, it will ask you for your email and password only. But if you or someone else try to access your account from any other computer or browser, the verification code will be required. So your account will still be protected. The verification code will be also required when the two-factor authentication cookie has expired or if you decide to delete cookies from your browser.