How far is the user(login) system implemented?

[Jasper Huzen]

Hi,

We are a group of students and we are interested in writing the 
user(login) system into ReactOS (we have he project with the subject 
'Security' and we may choose a security project)

Can anyone tell me how far the user system (userlogin and security of 
users) implemented?????

Jasper
MSN: [e-mail]