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Data Types and States: Structured, Unstructured, At Rest, In Use, and In Transit (3.3)

July 15, 2026 · 15 min

Show notes

This episode explains data types and data states, which are central to choosing the correct protection method. Structured data is organized in predictable formats such as databases and spreadsheets, while unstructured data includes documents, emails, images, chat records, and other content without a fixed schema. Data at rest is stored, data in transit is moving across a network, and data in use is actively being processed by applications or users. For Security+ scenarios, students should match controls to the data state, such as storage encryption for data at rest, TLS for data in transit, and access control, memory protection, or application safeguards for data in use. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your educational path. Also, if you want to stay up to date with the latest news, visit DailyCyber.News for a newsletter you can use, and a daily podcast you can commute with. And dont forget Cyberauthor.me for the companion study guide and flash cards!

All episodes of Certified: The CompTIA Security+ Audio Course

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