NodeZero is an autonomous penetration testing platform developed by Horizon3.ai that performs security assessments across multiple environments. The platform conducts internal network pentesting, external pentesting, Kubernetes pentesting, and cloud pentesting operations without requiring manual intervention. The platform includes Active Directory security testing capabilities, including password auditing and AD Tripwires for threat detection. NodeZero performs vulnerability assessments and provides risk-based vulnerability management through its Vulnerability Management Hub. The platform offers security control validation features including endpoint security effectiveness testing, identity security validation, and data security effectiveness assessment. It includes high-value targeting capabilities and advanced data pilfering simulation to identify potential attack paths. NodeZero provides threat intelligence features including threat actor intelligence and vulnerability risk intelligence. The platform supports compliance requirements for PCI and NIS 2 standards through automated testing and reporting. The platform includes rapid response testing capabilities for CISA KEV exploitation scenarios and third-party risk management assessments. NodeZero can autonomously solve cyber range environments and has demonstrated capabilities against environments like GOAD and Hack The Box challenges. The platform is available in a federal version (NodeZero Federal) and serves multiple industries including financial services, healthcare, education, manufacturing, and public sector organizations.