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This category contains pages which have beensemi-protected to preventvandalism and otherunconstructive editing. This is done when a page has been repeatedly vandalized by many users, or when such vandalism is anticipated. (Vandalism by a small number of users is more easily dealt with byblocking the users responsible.) This protection is usually temporary, although pages that are vandalized very frequently, such asWikipedia, are indefinitely semi-protected. Semi-protection prevents a page being edited byanonymous and newly registered users. To edit these pages, users must have been on Wikipedia forat least 4 days and must have made a total of 10 edits to mainstream articles. Very visible pages such asthe Main Page are fully protected, which allows onlyadministrators to edit them; seeCategory:Wikipedia pages protected against vandalism for pages which have been protected for this reason.Use{{pp-vandalism}} or{{pp|vandalism}} to add a page to this category. This should only be done if the page is in fact semi-protected – adding the template does not in itself protect the page.

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