I have an online tutorial site for secondary students, to access I charge a small fee. I have set up self registration, and wait until payment is received and then I verify the users.
Is there anything I can do to deter students from signing up and then sharing their passwords with all their mates to avoid payment?
I’ve considered installing the users online plugin – would that show that the same student was logged on more than one computer?
Can I block a user if they are already logged in? I have also seen wassup plugin that will show users IP addresses etc – this might be useful.
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