How long does Wikipedia store IP information? Indefinately? This really should be spelled out on the edit page for anonymous users instead of simply saying 'your IP will be visible'.

Also, my ISP occasionally changes the IP address that I am given. When that happens, another user can impersonate my IP, and thus look like I was the party to their 'bad' edits. How does Wikipedia protect their users?

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closed as off topic by nhinkle, Majenko, Sathya Apr 7 '11 at 10:55

Questions on Super User are expected to generally relate to computer software or computer hardware, within the scope defined in the faq.

2 Answers

up vote 4 down vote accepted

http://wikimediafoundation.org/wiki/Privacy_policy#Details_of_data_retention

"Logging in with a registered username allows for better preservation of privacy."

But I note that superuser.com is not a discussion forum. If Wikipedia's policies need changing, that should be taken up at Wikipedia.

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Regarding your "also", a couple points:

1) Your IP is typically not widely-known to other users. If I say "123.234.123.234 is an idiot!", nobody will know who I'm talking about.

2) A lot of people (read: "the vast majority of home users") have dynamic IP addresses and this is well-enough-known that I don't think you have to worry about it hurting your reputation even if you do get someone else being a twit from your former/future address.

3) If your concern is more legal rather than simply public reputation, ISPs keep logs of who has what IP address at which times and, if they need to track someone down, law enforcement will request those logs to see who had that address at the time of the crime, so there's no danger of you getting busted for what someone else did just because they did it using an IP address that you had previously been on.

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#3 I've heard that my ISP (Comcast) has gotten it wrong at times. This was years ago of course. Here's to paranoia, I suppose. – unixman83 Apr 7 '11 at 9:28
@unixman83: I haven't heard anything like that about Comcast... but it wouldn't surprise me in the least if it's true. – Dave Sherohman Apr 7 '11 at 10:42
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