User info for php / javascript
I believe that some users of my site use IP masks to create multiple accounts. Due to the nature of my site / game, this is against the rules and I need to remove such players.
I am currently tracking their IP, host, browser type, etc. with PHP, I am also using javascript / jquery to get the screen size. I also have a little script tweak that tells me if they will come through the forwarder. He says that this is a specific player, although his IP address does not match the proxy lists I came across.
Basically, I'm looking for any other information I can gather to compare and determine if the suspect is actually the second account of the second player. Any suggestions?
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The only thing I can think of is using a phone number as part of the subscription process. And send some kind of verification code via SMS.
You can also start configuring cookies.
And is it possible to imagine some kind of detection as part of your game / application. Similar to how you add some game elements that will expose the suspects to some secret knowledge. Set up baits. How do you show some secret cheat codes or specific link / location for one suspect doppelganger and not the other. Then if another tries to use that information - you got it ... Basically create some kind of hidden intelligence in your application.
By combining them with all the other detection methods, it can be very close to 100% bulletproof and can be a lot of fun.
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