The provided texts offer comprehensive guidance on reasonable cybersecurity practices, primarily focusing on the Center for Internet Security (CIS) Controls and their application, especially within Microsoft 365 environments. The first source, a guide on reasonable cybersecurity, explains how the CIS Controls provide specific, actionable measures to help organizations meet legal and regulatory standards, reduce data breach litigation, and define what constitutes minimally adequate information security. It highlights the fragmented nature of current cybersecurity laws and positions CIS Controls as an emerging de-facto standard. The other two sources, dedicated to CIS Controls v8.1 and a CIS Microsoft 365 Foundations Benchmark, then provide detailed technical configurations and recommendations across various Microsoft 365 services (such as Admin Center, Defender, Purview, Intune, Entra, Exchange, SharePoint, Teams, and Fabric) to harden system security. These benchmarks outline audit and remediation procedures for specific settings, referencing their alignment with the broader CIS Controls to ensure robust cyber hygiene and protection against common cyberattacks.
