Developer workstations have become a critical attack surface in software supply chains, with credentials exposed through .env files, shell history, AI prompts, and local logs. GitGuardian's 2026 State of Secrets Sprawl report found 28.6 million new secrets in public GitHub commits in 2025, and AI coding assistant users leak twice as many secrets per commit. The post advocates for layered local guardrails using ggshield CLI, VS Code/Cursor/Windsurf extensions, Git pre-commit and pre-push hooks, and AI workflow hooks that scan at prompt submission, pre-tool use, and post-tool use stages to catch credentials before they spread beyond the developer machine.
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The Common Thread Is Credential TheftThe Workstation Now Holds Too Much Context To IgnoreEarlier Checkpoints Reduce DamageProtecting Your Developers' SecretsAi Tools Need Guardrails At The Handoff PointsLayered Prevention Without Forcing A Separate WorkflowSort: