That's half true. It's all or nothing on first use, but you can revoke any non-r... | Hacker News

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		MatthewCampbell on Jan 16, 2011 \| parent \| context \| favorite \| on: Facebook Now Shares Phone Number & Address With Th... That's half true. It's all or nothing on first use, but you can revoke any non-required permissions later: http://www.facebook.com/settings/?tab=applications

aditya on Jan 16, 2011 [–]

You can't take back the data tha you already gave to the app, however. Revoking permissions prevents the app from accessing your info in the future, but it's sort of limited once you've already given that data to the app

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