Final answer:
Information assurance is primarily practiced by a wide array of organizations, both public and private, that need to keep data secure. Specialized personnel, including intelligence officers, are key actors in this domain.
Step-by-step explanation:
Information assurance is practiced by many organizations, including those of the public and private sector like hospitals, law enforcement, and businesses. These entities are responsible for protecting sensitive data and ensuring the privacy, integrity, and availability of information. In the context of law enforcement, both local police and federal agencies such as the FBI and DHS have roles in safeguarding information, particularly as it relates to criminal investigations and national security.
While individuals can and do participate in information assurance through measures such as being aware of privacy rights and reading privacy policies, organizations commonly employ specialized personnel, including intelligence officers and IT professionals, to implement information assurance practices strategically and comprehensively.