So, an integration was made because of our purchase of two products. Based on this, we have a problem – some users that do not have any access to jira can pass the authorization in it. The permit to enter the program is giving an «Anonymous». At the beginning, we thought that user who has an access to confluence might pass an authorization to jira, but then not registered in confluence user passed authorization in jira. It is important to understand, we talking about situation like something (may be Linux server) gives a permission to access, not like viewing projects and spaces by non-authorized user.