What does Tempest shielding primarily protect against?

Tempest shielding primarily protects against electromagnetic emanations. This refers to the unauthorized interception of sensitive information that can be inadvertently leaked through electromagnetic signals emitted by electronic devices. The shielding is designed to prevent these signals from being detected and analyzed by outside parties, thereby safeguarding confidential data from potential espionage or data breaches.

While radio frequency interference, physical theft, and data corruption are important security considerations, they do not specifically relate to the purpose of Tempest shielding. Rather, this specialized shielding focuses on the containment of emanations that can carry sensitive information, thus ensuring that only authorized personnel have access to critical data.