6 CISO Takeaways From the NSA's Zero-Trust Guidance

This article summarizes the NSA's guidance on the Network and Environment pillar of its seven-pillar zero-trust framework, presenting six key takeaways: learn the seven pillars, assume attackers can breach perimeters, map data flows, start with macrosegmentation and refine to microsegmentation, consider software-defined networking for rapid response, and treat zero-trust as an iterative program; the guidance is aimed at defense-related organizations but is broadly applicable to commercial enterprises.