Episode 57: Encryption Use Cases: Data at Rest vs. Data in Transit

This episode explains how encryption protects data in two primary states—when stored (data at rest) and when moving across networks (data in transit). We define plaintext and ciphertext, along with encryption methods for securing files, disks, mobile devices, emails, and web traffic. Understanding these concepts is vital for identifying when and how encryption should be applied.

We provide practical examples such as encrypting a laptop hard drive to protect against theft or using a VPN to secure communications over public Wi-Fi. These scenarios show how encryption supports confidentiality and compliance, both in the workplace and on the exam. Produced by BareMetalCyber.com, where you’ll find more cyber prepcasts, books, and information to strengthen your certification path.