Data Classification and Handling#
Data classification assigns sensitivity levels to data and maps those levels to specific handling requirements — who can access it, how it is encrypted, where it can be stored, how long it is retained, and how it is disposed of. Without classification, every piece of data gets the same (usually insufficient) protection, or security is applied inconsistently based on individual judgment.
Defining Classification Tiers#
Most organizations need four tiers. Fewer leads to overly broad categories. More leads to confusion about which tier applies.