"Today Facebook finally started to roll out a new set of privacy controls. These tools, many months in the making, are designed to help simplify the site's notoriously confusing privacy options. But alongside them Facebook is also rolling out a "Transition Tool" that promotes Everyone updates as the new default. In other words, Facebook is giving up its reputation as a `private' social network - where the default is to restrict access to everything that is shared - in favor of something that can challenge Twitter head on."

...

"If you delete "everyone" content that you posted on Facebook, we will remove it from your Facebook profile, but have no control over its use outside of Facebook."

Source: https://beta.techcrunch.com/2009/12/09/facebook-privacy/