preventing site membership "fraud"

[esllou]

I am just about to launch a pay section of my site. I have the amember script installed and content in place. I was just wanting to hear from members here about how they go about preventing membership fraud: in other words, members who just freely give out their id's and passwords to their friends and colleagues and you end up having 24 people signing on with one member's login details.

The easiest way would be checking IP's but with so many dynamic IP's around, not sure this is a viable solution.

do I just have to "suck it up"? :-)

[Essex_boy]

You may have thought of this but only allow one login to take place at one time.

[esllou]

it's not so much the "at one time" problem that bothers me, just that this is in a sector which might encourage members to share their membership info with colleagues.

[physics]

Right but allowing only one or two logins at a time for one account would curb this abuse. How useful would your friend's uname/pass be to you if it only worked half the time (or less if he gave it to a lot of people ;) ).

[esllou]

does anyone know if amember has this functionality?

I seem to recall when I set it up that it did allow me to limit the number of different IP numbers users could log-on with, but for reasons outlined in my opening message, I chose not to activate that.