A healthcare technology company faced an HSR Second Request requiring review of 3M documents in just 11 weeks. With over half potentially privileged, Lighthouse applied court-approved TAR, integrating Skype and Teams data into the workflow. AI models trained by counsel reduced the responsive set by 80% and cut privilege review by 45%, achieving 76% recall and 79% precision. Disputed privilege calls underwent QC, and automated tools streamlined privilege logs and redactions. The approach eliminated 1.3M documents, reduced eyes-on review for PII/PHI by 51%, flagged toxic communications, and efficiently logged 19K privilege entries, ensuring compliance and saving millions.

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