5 min readSPIFFE focuses on who a workload is. It issues cryptographic identities to services and workloads so they can prove their authenticity to each other without relying on stored secrets. OAuth focuses on what a workload is allowed to do. It defines how access is delegated and controlled when one service needs to interact with another or call an external API.
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Ashur Kanoon
Source: Security Boulevard
Source Link: https://securityboulevard.com/2026/03/spiffe-vs-oauth-access-control-for-nonhuman-identities/