What is Hadrian?

Hadrian makes an offensive security platform that helps enterprise security teams see what attackers see, and act before they do. Its agentic engine continuously discovers, validates, and prioritizes exposures across the external attack surface, replacing assumption of risk with proof of risk. Hadrian is an adversarial exposure validation (AEV) platform, recognized by Gartner and GigaOm.

Hadrian is the only AEV platform that combines continuous breadth (Atlas) with deep, agentic penetration testing (Nova) in a single system with shared context. Most platforms in the category do one or the other. The result is that Hadrian validates exposures across the full external attack surface continuously, and goes deep on specific applications when needed, without security teams having to stitch the picture together themselves.

Traditional penetration tests are point-in-time engagements that require scheduling, depend on individual tester availability, and deliver static reports. Hadrian's Nova product runs agentic penetration tests on-demand, completes them in hours rather than weeks, and shows full transparency into the AI's reasoning, tests performed, and evidence collected. Nova does not replace human expertise; it scales it.

Vulnerability scanners identify potential weaknesses based on signatures and known CVEs. They flag what might be exploitable. Hadrian validates exploitability before raising an alert. Every reported exposure has been independently confirmed by an AI agent that has actually tested it, eliminating the noise and false positives associated with traditional scanning.

Adversarial exposure validation is a category of security technology that simulates attacker behavior to test whether exposures are actually exploitable, replacing the assumption of risk with proof of risk. Gartner recognizes AEV as a distinct market category and names Hadrian as a representative vendor in the Market Guide for Adversarial Exposure Validation.

‍

Continuous threat exposure management is a security program methodology, defined by Gartner, for continuously discovering, validating, and prioritizing an organization's most critical exposures. CTEM programs are powered by AEV technology. Hadrian provides the validation-native platform that enables organizations to run a CTEM program in practice.

Yes. Hadrian's agentic engine uses purpose-built AI agents to autonomously map, test, and validate exposures. Each agent is designed for a specific attack class and chains techniques the way a human attacker would. The system reasons about application behavior rather than pattern-matching against CVE lists.