HiddenLayer
Identity Audit
Authority Audited
Human Verified: August 2026
DirJournal Editorial Verdict
HiddenLayer has cleared DirJournal's 12-point manual editorial audit and is verified as an active AI Red Teaming & Stress-Testing entity. Last reviewed August 25, 2026.
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Editorial Verification
Full Audit Transparency Report
Last Reviewed: August 25, 2026
200 OK StatusVerified
Primary website is live, secure (HTTPS), and free of malware.
Domain AgeVerified
Real-world domain age (≥1 yr, verified via the Wayback Machine) OR pre-migration legacy ID OR ≥2 years of platform tenure. Survival across multiple search-engine update cycles is itself a trust signal.
Schema ValidationVerified
Valid Organization / ProfessionalService JSON-LD emitted on every page load — checked at render time.
Citation ClarityVerified
Verified outbound links to at least two authoritative sources (social profiles, sameAs URLs).
Operational HistoryVerified
Minimum 12-month active history in the claimed industry — derived from the business's founding year, Wayback-verified domain age, or listing tenure (any one signal passes).
Entity RegistrationVerified
Cross-referenced with official state or country business registries.
Physical FootprintVerified
Verified non-virtual presence via Google Maps or official lease documentation.
Active LeadershipVerified
Confirmation of key team members and executive roles.
NAP ConsistencyPending Manual Review
Verified match of Name, Address, and Phone data across platforms.
Professional LicensingPending Manual Review
Verification of required industry-specific certifications or licenses.
Sentiment AuditPending Manual Review
Manual review of third-party reputation signals (BBB, Trustpilot, etc.).
Editorial DiscretionPending Manual Review
Final human review to ensure the business provides genuine value.
About
HiddenLayer
HiddenLayer is an artificial intelligence security company headquartered in Austin, Texas, that develops an end-to-end platform for protecting machine learning models against adversarial attacks. The company was founded in 2022 by Chris Sestito, who serves as chief executive officer, Tanner Burns as chief scientist, and Jim Ballard as chief technology officer, all of whom previously responded to one of the first real world attacks against a production machine learning system at Cylance. HiddenLayer closed a 50 million dollar Series A funding round in September 2023 led by M12, the venture arm of Microsoft, and Moore Strategic Ventures, with participation from Booz Allen Ventures, IBM Ventures, Capital One Ventures, and Ten Eleven Ventures. Total funding across two rounds has reached 56 million dollars. The company product portfolio spans AI Discovery, AI Supply Chain Security, AI Attack Simulation, AI Runtime Security, model scanning, red teaming, AI guardrails, and agentic protection for MCP-based systems.
HiddenLayer is an artificial intelligence security company that builds an end-to-end defensive platform for enterprise machine learning models, deployed pipelines, and agentic systems. The Austin, Texas company positions its platform as coverage across the full AI lifecycle, from model provenance and supply chain checks through runtime detection of adversarial prompts and data extraction attempts. The company was founded in March 2022 by Chris Sestito, chief executive officer, Tanner Burns, chief scientist, and Jim Ballard, chief technology officer, following the founders' response at Cylance to what has been publicly cited as one of the first real world attacks that exploited a production machine learning system. In September 2023 the company closed a 50 million dollar Series A round led by M12, the corporate venture arm of Microsoft, and Moore Strategic Ventures, with participation from Booz Allen Ventures, IBM Ventures, Capital One Ventures, and Ten Eleven Ventures. Total funding across two rounds now stands at 56 million dollars. The product portfolio spans eight areas: AI Discovery, AI Supply Chain Security, AI Attack Simulation, AI Runtime Security, model scanning, red team assessment services, AI guardrails, and agentic protection for Model Context Protocol systems. Gartner has recognized HiddenLayer as an AI Application Security provider.
DirJournal's Perspective · Human-in-the-Loop
Editorial analysis
HiddenLayer operates security checks outside the AI model itself, meaning its protections function even when the underlying model fails or is actively compromised.
Reviewed by DirJournal Editorial Board
Frequently Asked
About HiddenLayer
What does HiddenLayer do?
HiddenLayer is an artificial intelligence security company headquartered in Austin, Texas, that develops an end-to-end platform for protecting machine learning models against adversarial attacks.
Where is HiddenLayer based?
HiddenLayer is based in Austin, Texas, United States.
When was HiddenLayer founded?
HiddenLayer was founded in 2022 and has been operating for 4 years.
Technical Grounding
JSON-LDProfessionalService
- Address
- 701 Brazos Street, Suite 550
- Location
- Austin, Texas, United States
- Founded
- 2022
- Team Size
- 1-10 employees
Social Media
Digital Footprint · Technical Entity Graph
- Website
- Schema TypeProfessionalService
- JSON-LDActive
- NAP Vault IDNot assigned
- Social Profiles2 verified profiles
- Platform TenureNew listing
View Technical Schema▸
- @type
- ProfessionalService
- areaServed
- Austin, Texas, United States
- openingHours
- Mo-Fr 09:00-17:00
Knows About
AI SecurityModel ProtectionPrompt Injection DetectionAI Runtime DefensePolicy Enforcement
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