Understanding the Importance of Cybersecurity Due Diligence

## Executive Summary This whitepaper outlines the importance of cybersecurity due diligence in mergers, acquisitions, and ongoing third‑party vendor management, describing a framework to measure vendor cyberhealth, compare performance against industry peers, centralize monitoring, apply standard frameworks (e.g., NIST), remediate vulnerabilities, and continuously monitor portfolio risk; it includes tailored considerations for healthcare, financial services, and manufacturing and promotes SecurityScorecard’s continuous external ratings and monitoring as a means to accelerate due diligence and predict vendor breach likelihood.