On Wikipedia, vandalism has a very specific meaning: editing (or other behavior) deliberately intended to obstruct or defeat the project's purpose, which is to create a free encyclopedia, in a variety of languages, presenting the sum of all human knowledge.

The malicious removal of encyclopedic content, or the changing of such content beyond all recognition, without any regard to our core content policies of neutral point of view (which does not mean no point of view), verifiability and no original research, is a deliberate attempt to damage Wikipedia. There, of course, exist more juvenile forms of vandalism, such as adding irrelevant obscenities or crude humor to a page, illegitimately blanking pages, and inserting obvious nonsense into a page. Abusive creation or usage of user accounts and IP addresses may also constitute vandalism.

Vandalism is prohibited. While editors are encouraged to warn and educate vandals, warnings are by no means a prerequisite for blocking a vandal (although administrators usually only block when multiple warnings have been issued).

Even if misguided, willfully against consensus, or disruptive, any good-faith effort to improve the encyclopedia is not vandalism. For example, edit warring over how exactly to present encyclopedic content is not vandalism. Careful consideration may be required to differentiate between edits that are beneficial, edits that are detrimental but well-intentioned, and edits that are vandalism. If it is clear that the editor in question is intending to improve Wikipedia, those edits are not vandalism, even if they violate some other core policy of Wikipedia. Mislabeling good-faith edits as vandalism can be considered harmful; instead of calling such problems vandalism, use the appropriate terminology to make it easier to correct. When editors are editing in good faith, mislabeling their edits as vandalism makes them less likely to respond to corrective advice or to engage collaboratively during a disagreement, for that reason you should avoid using the term "vandalism" unless it is clear the user in question means to harm Wikipedia; this is even true when warning a user with a standard warning template. Choose the correct template that most closely matches the behavior you are trying to correct.


Upon discovering vandalism, revert such edits, using the undo function or an anti-vandalism tool. Once the vandalism is undone, warn the vandalizing editor. Notify administrators at the vandalism noticeboard of editors who continue to vandalize after multiple warnings, and administrators should intervene to preserve content and prevent further disruption by blocking such editors. Users whose main or sole purpose is clearly vandalism may be blocked indefinitely without warning.

Other Languages
Avañe'ẽ: Vikipetã:Mbyai
azərbaycanca: Vikipediya:Vandalizm
Bahasa Banjar: Wikipidia:Vandalisme
беларуская (тарашкевіца)‎: Вікіпэдыя:Вандалізм
davvisámegiella: Wikipedia:Vandalisma
hornjoserbsce: Wikipedija:Wandalizm
Bahasa Indonesia: Wikipedia:Vandalisme
Lëtzebuergesch: Wikipedia:Vandalismus
Bahasa Melayu: Wikipedia:Laku musnah
Nedersaksies: Hulpe:Vandalisme
norsk nynorsk: Wikipedia:Hærverk
oʻzbekcha/ўзбекча: Vikipediya:Vandalizm
Simple English: Wikipedia:Vandalism
slovenščina: Wikipedija:Vandalizem
srpskohrvatski / српскохрватски: Wikipedia:Vandalizam
татарча/tatarça: Википедия:Vandalizm
Tiếng Việt: Wikipedia:Phá hoại