CVS settled a class action alleging HireVue facial-expression AI acted as an illegal lie detector
CVS Health required job applicants to complete HireVue video interviews analyzed by Affectiva AI software that tracked facial expressions and assigned employability scores measuring traits such as integrity and conscientiousness. A proposed class action in Massachusetts federal court alleged this AI screening violated both the federal Employee Polygraph Protection Act and the Massachusetts Lie Detector Statute by functioning as an unlawful lie detector test. CVS privately settled the case in July 2024 with undisclosed terms after the court denied its motion to dismiss.
Affectiva's AI treated a job applicant's fleeting smirk as evidence of dishonesty, turning a video interview into an illegal lie detector test.
Key facts
- What
- CVS Health required job applicants to complete HireVue video interviews analyzed by Affectiva AI software that tracked facial expressions and assigned employability scores measuring traits such as integrity and conscientiousness.
- Incident date
- Jul 1, 2024
- Who
- CVS Health
- Failure mode
- Policy Violation
- AI surface
- Agentic Workflow
- Severity
- Medium
What happened
CVS Health required job applicants to complete HireVue video interviews analyzed by Affectiva AI software that tracked facial expressions including smiles, surprise, contempt, disgust, and smirks. The system assigned each candidate an employability score that assessed conscientiousness, responsibility, and an innate sense of integrity and honor. Plaintiff Brendan Baker filed a proposed class action in Massachusetts federal court in 2023, alleging this AI screening violated the federal Employee Polygraph Protection Act and the Massachusetts Lie Detector Statute by functioning as an illegal lie detector test. CVS reached a private settlement in July 2024 after the court denied its motion to dismiss, with settlement terms not publicly disclosed.
What broke inside the model
- 01 · TriggerA prompt pushes against a deployment boundary.
- 02 · Model stepThe model produces the disallowed output.
- 03 · Control gapNo enforcement blocks it at generation time.
- 04 · FailureThe output crosses the policy line.
- 05 · ConsequenceA limit the business set is breached in public.
The output crosses a policy boundary the deployment had defined.
The Affectiva AI analyzed candidates' facial micro-expressions including smiles, surprise, contempt, disgust, and smirks, then inferred personality traits such as conscientiousness, responsibility, and an innate sense of integrity and honor. This automated inference system effectively treated emotional expression patterns as indicators of truthfulness, crossing the legal boundary between personality screening and polygraph-style deception testing. The system lacked safeguards to prevent its facial expression scoring from constituting an illegal lie detector under employment law.
What it cost
Sources
- PressCVS settles lawsuit alleging it used AI 'lie detector' in interviewshrdive.com
- Court FilingBaker v. CVS Health Corporation, 1:23-cv-11483courtlistener.com
- PrimaryAI Job Screening, Interview & Hiring Lawsuitsclassaction.org
Cite this entry
https://failureindex.ai/failures/cvs-settled-class-action-alleging-hirevueAI Failure Index. "CVS settled a class action alleging HireVue facial-expression AI acted as an illegal lie detector" (FI-0151). Realm Labs. https://failureindex.ai/failures/cvs-settled-class-action-alleging-hirevue (indexed Jun 4, 2026).Data fields CC-BY 4.0, prose citation permitted. Incident ID FI-0151. Full dataset at /data.
Note from Realm Labs, the Index steward
How Realm would have caught this
- Prism
- OmniGuard
Realm compares what the model is about to output or do against the policy that governs the deployment, in real time, and can deny or redact the action before it takes effect, which is the gap an after-the-fact review never closes in time.