You can use shorter form: s<index_num>, eg. s123456
Logins in domains do not work anymore, please use

Valid identifiers are:
workers: login
students: s<index_num> (eg. s123456) or login@stu­

For security reasons, please log out when you have finished using services which require authentication! Remember not to entrust others with your password (be extremely careful with any emailed requests to log in).