Systems and methods that relate to security enforcement for shared content are described. A system includes an interface component that facilitates a display of information indicative of an option to select a defined level of security for a first subset of content of a plurality of content, wherein the defined level of security is indicative of a first type of secure environment. The first type of secure environment can be a hypertext transfer secure (HTTPS) environment or any environment in which content is encrypted prior to transmission over the Internet. A security component determines an association between the first subset of content and the defined level of security; and generates decision information to facilitate output, to a device, of the first subset of content associated with the defined level of security based on a determination that the device provides the first type of secure environment.