What is End-to-End Encryption?

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What is End-to-End Encryption?

In end-to-end encryption, data is protected by default wherever it goes over its entire lifecycle. Sensitive data is encrypted the moment it is captured, in a point-of-sale (POS) device at a retail store, for example, and stays encrypted or is re-encrypted while it moves between systems and security domains. This notion of encryption as a data “bodyguard” that always accompanies data objects (files, documents, records, and so on) is appealing but raises questions about establishing trust relationships between different domains and interoperability when it comes to key management.

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