Active Directory Hardening
Active Directory is the central identity and authorization system for many companies – and simultaneously one of the most important targets of modern cyberattacks. Compromised domain controllers often give attackers complete control over an IT environment.
We analyze existing Active Directory environments, identify security-critical misconfigurations, and implement hardened security configurations. The goal is a significantly reduced attack surface, clear administrative structures, and a secure foundation for regulatory compliance.
Typical security problems in Active Directory
Many Active Directory environments have been expanded and customized over the years. This often creates security vulnerabilities that are deliberately exploited by attackers.
Typical examples include overly broad administrator rights, lack of separation between privileged accounts, insecure group policies, or outdated authentication mechanisms. Other common vulnerabilities include missing logging, insecure service accounts, and inadequately protected domain controllers.
These configurations often allow attackers to perform a so-called privilege escalation – that is, the gradual expansion of permissions until they have complete control over the entire domain.
A structured Active Directory hardening process significantly reduces these risks while simultaneously improving the transparency and traceability of administrative activities.
Our services in the area of Active Directory Security
We support companies in analyzing, hardening, and structurally developing their Active Directory environment.
Our services include, among other things:
• Analysis of existing domain controller configurations
• Evaluation of group policies and security policies
• Introduction of security baselines and hardening standards
• Structuring privileged accounts and administration models
• Securing domain controllers and administration systems
• Improvement of logging and security-related recording
The measures are always tailored to the existing infrastructure and implemented in such a way that they remain maintainable and auditable in the long term.
Securing identity and authorization systems is a key component of modern IT security requirements.
Active Directory hardening supports requirements from, among other things:
• NIS2 – Risk Management and Access Controls
• DORA – Protection of critical ICT systems in the financial sector
• BSI C5 – Identity and Access Management and System Security
• Telecommunications Act (§166) – technical security measures
A hardened Active Directory architecture allows many regulatory requirements to be implemented in a technically verifiable way.