Wikipedia:Cascade-protected items/content

Escape templates
Often used in system messages and templates with Parser Functions.

Citation templates
Used in almost every article

Meta templates
High-risk templates that serve as "roots" for more specific templates.

Interface templates
Templates that are used in the interface. That is, templates that have been designed to be used in the MediaWiki namespace and their dependencies.

Cascade protected images
The images listed here are protected even if they are accidentally deleted. Thus no-one can upload a bad image during that time. This also protects the images after they have been restored, since admins sometimes forget to re-protect the images after they have restored them.

Admins sometimes delete protected images by accident, or because they think we don't need them since they exist on Commons. But images are usually locally uploaded and protected here at the English Wikipedia since they are used in an interface message or in some widely used template. Thus these images are high-use and high-risk.