Closed courses are only available to registered users who are subscribed to the relevant academic subjects.

A high level of user identification protection is ensured by two-factor authentication - sending a code to a mobile phone or e-mail. Integration with such social media as yandex.ru, vk.com, google.com, facebook.com, Odnoklassniki, Mail.Ru, MSN, GitHub, LinkedIn allows users to access the 3KL LMS without registering and entering a password and/or create an account based on registration data in the social network.