HU

huntr

418SEC LTD

London, United Kingdom

Offensive SecurityApplication Security
Serves Enterprise
Profile last updated: May 5, 2026

About

huntr is a cybersecurity company based in London, United Kingdom working in offensive security, application security.

huntr is a vulnerability disclosure and bug bounty platform for AI/ML open-source applications, libraries and model file formats. Security researchers (Contributors) report vulnerabilities, FOSS maintainers validate them, and bounties are paid out for validated reports and fixes. Bounties are funded by the company and by clients, typically FOSS projects, their sponsors, non-profit or enterprise-backed FOSS projects, and enterprises using FOSS. Validated open-source reports are assigned CVEs and disclosed on a set timeline. huntr operates as part of the Protect AI corporate group; payments are made by the US-based parent company via Stripe Connect. The company is registered in England & Wales.

Location

London, United Kingdom

Legal name

418SEC LTD

Registration

11412418

Focus areas

bug bountyvulnerability disclosureAI/ML securityopen source securityCVE

Languages

EN

Services & products

Security domains

Offensive SecurityApplication Security

How they deliver

Professional Services

Products

huntr

Bug bounty platform

Vulnerability disclosure and bug bounty platform where security researchers submit vulnerabilities in open-source AI/ML software, with maintainer validation and bounty payouts.

Guardian

AI/ML model security scanning

Scanner for AI/ML model files, referenced as part of Protect AI's offering.

Customers

Enterprise

Industries served

AI/ML

Compliance & partners

Technology partners

Palo Alto Networks

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