HackerOne
HQ San Francisco, United Statesev-hackerone-09ev-hackerone-10 · Checked 2026-11-09 · Vendor AI page: hackerone.com/product/ai-red-teamingev-hackerone-01
HackerOne states on its AI testing page that it tests LLM applications and AI agents. It lists its headquarters in San Francisco, United States.
Facts
| Founded | Not published: fewer than two agreeing sources |
|---|---|
| Size band (employees) | Not published: fewer than two agreeing sources |
| Delivery locations | Not published: fewer than two agreeing sources |
| Engagement models (as stated) | Fixed-scope projectev-hackerone-07 |
| Pricing disclosed on vendor site | Noev-hackerone-14 |
| Certifications | Not published: fewer than two agreeing sources |
Coverage score
5 / 25 · rank 50 of 88
| AI product types stated on the vendor's AI page | 2 / 9 |
|---|---|
| Testing services stated on the vendor's AI page | 3 / 12 |
| Figures confirmed by two sources (founded, size band, delivery locations, certifications) | 0 / 4 |
The same formula is applied to every entry. It counts stated coverage and confirmed figures; it does not measure quality. How the score works.
AI products tested
As stated by the vendor on 2026-11-09
Testing services
As stated by the vendor on 2026-11-09
- Red teaming and adversarial testing
- AI security penetration testing
- Compliance and conformity assessment support
ev-hackerone-04ev-hackerone-05ev-hackerone-06
Not stated on the vendor's AI page
Services from this directory's taxonomy that the vendor's AI page does not mention. This does not mean the vendor does not offer them.
- LLM output evaluation
- RAG pipeline validation
- Prompt and model regression testing
- Bias and fairness audit
- ML model validation
- Training data and labeling QA
- Performance and latency testing
- Conversational flow testing
- Production monitoring and drift testing
Stated scope
HackerOne states that its H1 AI Red Teaming service tests AI models, agents, prompts, APIs and tool integrations in 15 or 30-day engagements performed by vetted AI security researchers with agent-driven testing. The page lists prompt injection, context poisoning, tool misuse and data exfiltration among the tested risks, and says findings are mapped to the OWASP LLM Top 10, MITRE ATLAS, NIST AI RMF and the EU AI Act.ev-hackerone-08
How the vendor describes itself
As described by the vendor; summarised on 2026-11-09. Client names, performance percentages and prices are left out.
HackerOne describes itself as uniting AI and human insight through a unified platform to expose and eliminate risk. Its About page names continuous discovery, validation, prioritization and remediation of exploitable risk, vulnerability disclosure, an agentic AI orchestrator, and security researchers who find what automation cannot.ev-hackerone-15
Evidence
Every source opened for this entry, with retrieval date and verification date. Verified by AI Testing Vendors.
| Id | Field | State | Source class | Source URL | Retrieved | Verified | Verifier |
|---|---|---|---|---|---|---|---|
| ev-hackerone-01 | aiServicePageUrl | As stated by vendor | vendor-site | 2026-11-09 (undated) | 2026-11-09 | AI Testing Vendors | |
| ev-hackerone-02 | aiProducts | As stated by vendor | vendor-site | 2026-11-09 (undated) | 2026-11-09 | AI Testing Vendors | |
| ev-hackerone-03 | aiProducts | As stated by vendor | vendor-site | 2026-11-09 (undated) | 2026-11-09 | AI Testing Vendors | |
| ev-hackerone-04 | services | As stated by vendor | vendor-site | 2026-11-09 (undated) | 2026-11-09 | AI Testing Vendors | |
| ev-hackerone-05 | services | As stated by vendor | vendor-site | 2026-11-09 (undated) | 2026-11-09 | AI Testing Vendors | |
| ev-hackerone-06 | services | As stated by vendor | vendor-site | 2026-11-09 (undated) | 2026-11-09 | AI Testing Vendors | |
| ev-hackerone-07 | engagementModels | As stated by vendor | vendor-site | 2026-11-09 (undated) | 2026-11-09 | AI Testing Vendors | |
| ev-hackerone-08 | statedScope | As stated by vendor | vendor-site | 2026-11-09 (undated) | 2026-11-09 | AI Testing Vendors | |
| ev-hackerone-09 | hq.country | Verified | vendor-site | 2026-11-09 (undated) | 2026-11-09 | AI Testing Vendors | |
| ev-hackerone-10 | hq.country | Verified | press-release | 2026-11-09 | 2026-11-09 | AI Testing Vendors | |
| ev-hackerone-11 | hq.city | Verified | vendor-site | 2026-11-09 (undated) | 2026-11-09 | AI Testing Vendors | |
| ev-hackerone-12 | hq.city | Verified | press-release | 2026-11-09 | 2026-11-09 | AI Testing Vendors | |
| ev-hackerone-13 | companyType | As stated by vendor | vendor-site | 2026-11-09 | 2026-11-09 | AI Testing Vendors | |
| ev-hackerone-14 | pricingDisclosed | As stated by vendor | vendor-site | 2026-11-09 (undated) | 2026-11-09 | AI Testing Vendors | |
| ev-hackerone-15 | vendorDescription | As stated by vendor | vendor-site | 2026-11-09 (undated) | 2026-11-09 | AI Testing Vendors |
Related
This directory accepts no payment for listing, placement, badges or removal. Vendors cannot buy a position: every list is ordered by one published coverage score, computed the same way for every entry from verified data. Entries are built from each vendor's own published pages and from independent sources named next to every figure.