What is TruffleHog and where does it fit in a DevSecOps pipeline?

Describe TruffleHog by the failure it prevents, not by its feature list. It belongs to secrets scanning with live verification and runs at the every stage stage of delivery, which matters because the cost of fixing a defect rises sharply the later it is found — the core argument behind shifting security left.

Strong answers cover verified vs unverified secrets (TruffleHog actually calls the provider to test the credential), scanning git history, S3 buckets, and CI logs, detector coverage, and prioritising verified findings so teams chase real leaks first. Interviewers also listen for the operational side: who owns the rules, how findings reach the developer who introduced them, how false positives get suppressed without silently disabling coverage, and what the break-glass path is when a fix genuinely cannot ship in time.

Tie it to the wider toolchain. Security scanning is only useful when its output is actionable, deduplicated across tools, and attached to a specific commit, image digest or resource — otherwise teams learn to ignore it.