Definition
BeyondCorp is Google's zero-trust enterprise architecture, treating every network as untrusted and shifting access control from the network perimeter to identity + device + context.
In more depth
Origin of the Zero Trust pattern. Published in research papers 2014-2017. Replaced traditional corporate VPN with Identity-Aware Proxy (IAP) gating per-application access.
Commercialized as Chrome Enterprise BeyondCorp + Google Cloud IAP. Adopted as the canonical Zero Trust reference model.
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