2007/3/13, Ian Tresman it@knowledge.co.uk:
If their User IP was identified with, for example, a college, then several people could indeed be using the same Wikipedia User IP address.
But if their IP address is identified with a private residential broadband account, then the only ways it could be compromised is:
a. Someone else has access to the same computer b. The home computer has a Trojan giving access to an intruder
c. They have an unprotected wireless network
And of course there is also the possibility that their IP is neither college nor private but (for example) an ISP-based cache.