Seven habits of highly fraudulent users
<i>Fraudsters tend to make multiple accounts on their laptop or phone to commit fraud.</i><p>Any idea how this can be tracked? Normal cookies, or something more in-depth?<p>A site I'm working on tracks page visits independently of logged-in user sessions.<p>I'm wondering if it's worth considering explicitly looking for multiple logged-in users sharing the same page visit session.<p>There are various tricks - e.g. Flash cookies, Etags etc - that make me feel a bit uneasy, despite how much I like the idea of tracking multiple accounts per device.