Disadvantages

As with any collaboration tool, wikis do have some disadvantages. Most are things that can be managed, but it is important to know them upfront. Some issues that may arise are the following:

 * ==All of the content can be modified by any user. If the page owner restricts who can modify certain pages, some issues can be eliminated.==
 * ==All content of the wiki is public unless the creator sets the page to private.==
 * ==Users can potentially be working on the same document or page at the same time and overwrite someone else's edits.==