Workload Identity Federation (WIF) changes how you think about machine identity.
WIF uses trust relationships to authenticate external workloads to Google Cloud - reducing credential exposure and operational overhead . The model is consistent: pool → provider/connector → service account binding.
👉 More insights: https://www.infoq.com/articles/gcp-wif-scale/
Long-lived GCP service account keys are secrets that must be managed forever, are hard to rotate, and are easy to leak. Scaling Workload Identity Federation to 120+ production projects shows why it changes how machine identity is approached entirely: keys are secrets to manage, federated identities are trust relationships configured once, gated by attribute conditions.
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