CISO Tribune

Vendor comparison · 2 companies

HackerOne vs Red Sentry

HackerOne puts Continuous Threat Exposure Management (CTEM) in practice through a continuous loop of discovery, validation, prioritization and remediation. Red Sentry sells offensive security services, from one-off penetration tests to ongoing PTaaS (Penetration Testing as a Service) partnerships. CISO Tribune files both under Penetration testing and red team services and Vulnerability management. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • HackerOne
  • Red Sentry
HackerOne vs Red Sentry: Products, Customers and Funding Compared
HackerOneHackerOne puts Continuous Threat Exposure Management (CTEM) in practice through a continuous loop of discovery, validation, prioritization and remediation.hackerone.comRed SentryRed Sentry sells offensive security services, from one-off penetration tests to ongoing PTaaS (Penetration Testing as a Service) partnerships.redsentry.com
What it sells
  • H1 Platform[2][3][6][8]Discovers, validates, prioritizes and remediates exploitable risk across the attack surface.
  • H1 Bounty[3]A product in which Hai supports triage, report summaries, and remediation guidance.
  • H1 Code[2]Available with opt-in frontier cyber model access.
  • H1 Code Security Audit[2]Uses agentic analysis to catch flaws built over years of releases.
  • PTaaS[1][3][5]A platform that gives teams a central place to track findings, remediation, retesting, communication, and report delivery.
  • Source Code Review[7]Tool-assisted static analysis paired with manual security review and validation.
  • Red Teaming[4]A simulated full-scale attack that tests an organization's people, processes, and technology.
  • Physical Security Assessment[9]Tests whether physical controls, people, and processes prevent unauthorized access to agreed locations and objectives.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Not stated on its pagesNot stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • July 29, 2026HackerOne launched H1 Remediation, a new H1 Platform capability that delivers developer-ready fix plans for validated, exploitable findings.[6]
  • June 2, 2026HackerOne announced the H1 Platform, an agentic AI platform for continuous discovery, validation, prioritization and remediation of exposures.[8]
  • March 18, 2026HackerOne launched Agentic Prompt Injection Testing, a capability that checks whether AI systems can be exploited under real-world adversarial conditions.[7]
Not stated on its pages
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, HackerOne sells mainly to teams operationalizing continuous exposure management and to complex, security-mature organizations, with platform coverage also described for the largest, most complex organizations. For AI security work, HackerOne names frontier labs and global enterprises as organizations it serves. Enterprises that need documentation showing AI systems were tested against recognized security and governance standards are also addressed.From its own pages, Red Sentry sells its testing services to organizations of all sizes. For mature security teams, Red Sentry offers advanced Red Teaming and adversary simulation. Red Sentry addresses buyers whose auditors require more than a scan. Red Sentry reviews both traditionally developed and AI-assisted codebases.
Last verified
November 4, 2026November 13, 2026

Where they overlap

  • HackerOne and Red Sentry are both filed under Penetration testing and red team services and Vulnerability management.

Where they differ, field by field

  • HackerOne's primary category is Exposure prioritisation and CTEM; Red Sentry's is Penetration testing and red team services.
  • HackerOne is also filed under Bug bounty and crowdsourced testing. Red Sentry is also filed under Breach simulation and automated pen-testing.
  • HackerOne lists H1 Platform, H1 Bounty, H1 Code and H1 Code Security Audit. Red Sentry lists PTaaS, Source Code Review, Red Teaming and Physical Security Assessment.

What it sells: HackerOne

What H1 Platform does[2][3][6][8]
The H1 Platform has a multi-model harness that broadens coverage, validates outputs, and traces findings to root cause. Hai is the agentic AI orchestrator that powers automation across the H1 Platform. Hai scores every incoming finding and surfaces what is actually exploitable in the customer's environment. Each product is an entry point into the full H1 Platform.
What H1 Bounty does[3]
Within H1 Bounty, Hai supports a team with triage, report summaries, and remediation guidance. HackerOne's global community of researchers continues to do the finding.
What H1 Code Security Audit does[2]
H1 Code Security Audit is available with opt-in frontier cyber model access. Agentic analysis catches flaws built over years of releases.

What it sells: Red Sentry

What PTaaS does[1][3][5]
PTaaS means penetration testing as a service. Every Red Sentry engagement includes full access to the PTaaS platform at no extra cost. The platform offers Jira integration for pushing remediation tickets to engineering teams. Portal access lets teams track project status, access reports and evidence, and manage remediation.
What Source Code Review does[7]
Source code review is a standalone Red Sentry service. Red Sentry reviews traditionally developed and AI-assisted codebases using the same human-led security review process. One round of remediation testing is included when requested within 90 days of report delivery, unless otherwise scoped.
What Red Teaming does[4]
Red Sentry follows the MITRE ATT&CK framework to simulate the entire lifecycle of a breach. Red team work includes testing endpoint protection (EDR/AV) by attempting to execute custom malware or tools. Red Sentry collaborates with the Blue Team to explain how controls were bypassed.
What Physical Security Assessment does[9]
Physical security assessment is a standalone Red Sentry service. Red Sentry agrees written authorization and rules of engagement before testing starts. Findings are documented with photographic evidence, steps to recreate them, severity, and remediation guidance.

Questions about HackerOne and Red Sentry

What do HackerOne and Red Sentry sell?
HackerOne sells H1 Platform, H1 Bounty, H1 Code and H1 Code Security Audit. Red Sentry sells PTaaS, Source Code Review, Red Teaming and Physical Security Assessment.
Are HackerOne and Red Sentry in the same category?
They share Penetration testing and red team services and Vulnerability management. HackerOne's primary category is Exposure prioritisation and CTEM and Red Sentry's is Penetration testing and red team services.
Who are HackerOne and Red Sentry sold to?
From its own pages, HackerOne sells mainly to teams operationalizing continuous exposure management and to complex, security-mature organizations, with platform coverage also described for the largest, most complex organizations. From its own pages, Red Sentry sells its testing services to organizations of all sizes.
What have HackerOne and Red Sentry announced recently?
July 29, 2026: HackerOne launched H1 Remediation, a new H1 Platform capability that delivers developer-ready fix plans for validated, exploitable findings.

About HackerOne

HackerOne puts Continuous Threat Exposure Management (CTEM) in practice through a continuous loop of discovery, validation, prioritization and remediation. The H1 Platform continuously discovers, validates, prioritizes and remediates exploitable risk across the entire attack surface. The H1 Platform operationalizes CTEM as a single connected system, with Hai as the agentic orchestration layer across every stage. Each product is an entry point into the full H1 Platform.[1][2]

Hai is HackerOne's agentic AI orchestrator, powering automation across the H1 Platform. Hai coordinates agents across every stage of the platform as a single connected system. Hai scores every incoming finding and surfaces what is actually exploitable in the customer's environment. Within H1 Bounty, Hai supports a team with triage, report summaries, and remediation guidance. HackerOne's global community of researchers continues to do the finding.[2][3]

Remediation guidance routes each finding to the right owner with full exploit context, delivered into the tools a team already uses. Retests confirm that fixes hold, and regression monitoring catches recurrences before they reopen. Core capabilities include continuous asset discovery and exposure scoring, workflow automation, and 36+ integrations. Cross-program dashboards track exposure velocity, remediation speed, and signal quality. Return on Mitigation is self-serve and gives a measure of avoided financial loss. The H1 Platform's multi-model harness broadens coverage, validates outputs, and traces findings to root cause.[2]

HackerOne's product lineup covers several kinds of testing. Always-on agentic testing continuously finds, validates and proves exploitable vulnerabilities across applications. Source code-informed fix plans are delivered in one click to engineering. AI code security reviews pull requests, validates exploitability and delivers context-aware fixes into developer workflows. Incentivized, time-boxed testing focuses researchers on a specific scope or objective. H1 Code, H1 Code Security Audit, and H1 Remediation are available with opt-in frontier cyber model access, adding deeper reasoning across the codebase.[2][4]

HackerOne combines human-led offensive testing with agentic adversarial validation for AI security. HackerOne tests models, retrieval pipelines, tools, APIs, and agent workflows to validate where systems can be exploited under real adversarial pressure. AI red teaming is adversarial testing built for AI systems, models, agents, and their integrations. H1 AI Red Teaming engagements include agent-driven testing to validate prompt injection exploitability across retrieval pipelines, tool permissions, and agent workflows. Validated findings and reproducible attack traces are delivered in the HackerOne Platform. AI red teaming reports can be mapped to NIST AI RMF, SOC 2, ISO 42001, HITRUST, and GDPR frameworks. HackerOne has tested 1,700+ AI assets across customer scopes.[3][4][5]

Anthropic CISO Jason Clinton chose HackerOne's full-stack red teaming to uncover hidden risks across AI models, applications, and system integrations. HackerOne names frontier labs and global enterprises as organizations it serves with AI security testing.[2][3][5]

HackerOne on the record

Sources

HackerOne full record

  1. [1]NewsroomHackerOne · hackerone.com · undated page, accessed November 4, 2026 · Tier A
  2. [2]Platform Overview | HackerOneHackerOne · undated page, accessed November 10, 2026 · Tier A
  3. [3]H1 AI Red Teaming | Offensive Testing for AI Models | HackerOneHackerOne · undated page, accessed November 10, 2026 · Tier A
  4. [4]HackerOne | Leader in Continuous Threat Exposure Management | Security for AIHackerOne · undated page, accessed November 10, 2026 · Tier A
  5. [5]AI Cybersecurity Solutions: AI Red Teaming, Penetration Testing, Vulnerability Testing | HackerOneHackerOne · undated page, accessed November 10, 2026 · Tier A
  6. [6]HackerOne Launches H1 Remediation to Accelerate the Path from Validated Exposure to Verified Fix | HackerOneHackerOne · published July 29, 2026 · Tier A
  7. [7]HackerOne Launches Agentic Prompt Injection Testing as AI Vulnerabilities Surge 540% | HackerOneHackerOne · published March 18, 2026 · Tier A
  8. [8]H1 Platform Delivers Continuous Threat Exposure Management at AI Scale with Validated Exploitability | HackerOneHackerOne · published June 2, 2026 · Tier A

Red Sentry full record

  1. [1]redsentry.comRed Sentry · redsentry.com · undated page, accessed November 13, 2026 · Tier A
  2. [2]DetailsRed Sentry · app.redsentry.com · undated page, accessed November 13, 2026 · Tier A
  3. [3]Red Sentry | Human-Led Penetration Testing & PTaaSRed Sentry · undated page, accessed November 13, 2026 · Tier A
  4. [4]Penetration Testing & Offensive Security Services | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  5. [5]Web Application Penetration Testing Services | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  6. [6]API Penetration Testing Services | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  7. [7]Secure Code Review Services | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  8. [8]Cloud Penetration Testing (AWS, Azure, GCP) | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  9. [9]Physical Security Pentesting | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  10. [10]Red Teaming Services: Objective-Based Attack Sims | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  11. [11]Social Engineering & Phishing Services | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  12. [12]SOC 2 Penetration Testing Support | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  13. [13]Network Pen Testing (Internal & External) | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A
  14. [14]Pen Testing Services for Modern Organizations | Red SentryRed Sentry · undated page, accessed November 13, 2026 · Tier A

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