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Horizon3.ai
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Horizon3.ai
@Horizon3ai
AI-Native Proactive Security
San Francisco, CA
horizon3.ai
Joined August 2020
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  • Pinned
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    Horizon3.ai
    @Horizon3ai
    Aug 12, 2025
    We just hit a major milestone: No. 1 in security and No. 121 overall on the 2025 @Inc 5000 list — with 2,962% growth in three years. 🔥 The takeaway? Offensive security isn’t the future — it’s here. Organizations are turning to #AI hackers and the attacker’s perspective to
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  • user avatar
    Horizon3.ai
    @Horizon3ai
    Jul 10
    CTEM is the framework. Now you need the playbook. Here's what separates organizations that adopt CTEM from those that actually operationalize it. 🧵
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    user avatar
    Horizon3.ai
    @Horizon3ai
    Jul 10
    Replying to @Horizon3ai
    CTEM maturity doesn't happen overnight. Crawl → Build the loop. Walk → Execute it consistently. Run → Continuously validate, remediate, verify, and improve.
    41
    user avatar
    Horizon3.ai
    @Horizon3ai
    Jul 10
    We put all of this and more into a practical guide: horizon3.ai/downloads/whit… #AISecurity #CTEM #infosec #cybersecurity
    Operationalizing CTEM A Practical Playbook for Continuous Threat Exposure Management_mockup
    Operationalizing CTEM: A Practical Playbook
    From horizon3.ai
    48
  • user avatar
    Horizon3.ai
    @Horizon3ai
    Jul 9
    Sometimes the shortest attack paths are the most eye-opening. This one started with an internet-facing PAN-OS device… …and ended with a perimeter breach and a RAT deployed. All in under 9 minutes.
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    Horizon3.ai
    @Horizon3ai
    Jul 9
    Replying to @Horizon3ai
    Continuously testing internet-facing infrastructure is the only way to know whether an exposure is actually exploitable in your environment.
    52
    user avatar
    Horizon3.ai
    @Horizon3ai
    Jul 9
    See the World's Best AI Hacker™ in action: horizon3.ai/contact-us/sch… #ProactiveSecurity #AttackPaths #CyberSecurity
    Horizon3.ai logo banner
    NodeZero Demo Request
    From horizon3.ai
    50
  • user avatar
    Horizon3.ai
    @Horizon3ai
    Jul 8
    🚨 An internet-facing ArcGIS Server can become an unauthenticated file disclosure point. Rapid Response test now available for CVE-2026-9181.
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    Horizon3.ai
    @Horizon3ai
    Jul 8
    Replying to @Horizon3ai
    What to do: ⚠️ Apply ArcGIS Server Security 2026 Update 2 Patch ⚠️ Prioritize internet-facing deployments ⚠️ Restrict access to exposed REST endpoints
    146
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    Horizon3.ai
    @Horizon3ai
    Jul 8
    👉 Run the #NodeZero Rapid Response test to validate exploitability and confirm remediation: horizon3.ai/attack-researc… #AISecurity #ProactiveSecurity #infosec #cybersecurity
    Illustration representing CVE-2026-9181, a critical path traversal vulnerability affecting Esri ArcGIS Server.
    CVE-2026-9181: Esri ArcGIS Path Traversal
    From horizon3.ai
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