Active Directory Under Siege: Why Critical Infrastructure Needs Stronger Security
Nov 12, 2025
Password Security / Threat Detection
Active Directory remains the authentication backbone for over 90% of Fortune 1000 companies. AD's importance has grown as companies adopt hybrid and cloud infrastructure, but so has its complexity. Every application, user, and device traces back to AD for authentication and authorization, making it the ultimate target. For attackers, it represents the holy grail: compromise Active Directory , and you can access the entire network. Why attackers target Active Directory AD serves as the gatekeeper for everything in your enterprise. So, when adversaries compromise AD, they gain privileged access that lets them create accounts, modify permissions, disable security controls, and move laterally, all without triggering most alerts. The 2024 Change Healthcare breach showed what can happen when AD is compromised. In this attack, hackers exploited a server lacking multifactor authentication, pivoted to AD, escalated privileges, and then executed a highly costly cyberattac...