Episode 91: Methods to Secure Data (Part 1) (Domain 3)

Protecting data effectively starts with strong core methods that control access and visibility, and in this episode, we focus on geographic restrictions and encryption as frontline tools. Geographic restrictions help limit who can view or interact with data based on their physical or network location—often used in regulatory compliance, fraud prevention, or content delivery controls. This can involve IP filtering, geofencing, or conditional access policies that automatically enforce rules based on user origin. We then shift to encryption, breaking down symmetric and asymmetric models, common algorithms like AES and RSA, and the distinction between encryption at rest versus in transit. Encryption not only protects data confidentiality, but also serves as a compliance requirement and breach mitigation factor in many legal jurisdictions. These methods may seem foundational, but they form the backbone of nearly every modern data protection strategy.

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