You trust your EDR to catch what matters, but when was the last time you proved it? #NodeZero’s EDR Healthcheck safely emulates real-world attacks in production to show exactly what your endpoint controls detect, block, or miss. You’ll see: 🔍 Technique-level results mapped to MITRE ATT&CK 🕵️ Host-by-host outcomes with timestamps and command logs 🧩 Gaps in detection logic or policy coverage All agentless. All safe in production. Stop assuming coverage — validate it. 🔗 Run your EDR Healthcheck: horizon3.ai/edr-healthcheck/… #EndpointSecurity #OffensiveSecurity #pentesting

Big things are coming! On November 12, Horizon3.ai Sr. Technical Product Manager Brad Hong will go deep on how the #NodeZero MCP Server is transforming how organizations operationalize autonomous security. You'll learn how to: ⚡ Leverage NodeZero findings to feed LLMs precise, real-world data about your environment. ⚡ Operationalize the full Find → Fix → Verify loop injected with additional org context from other MCP servers ⚡Explore what's possible when the NodeZero MCP Server becomes a cornerstone for autonomous workflows, from security orchestration to incident response acceleration. 📅 Don’t miss this one — save your spot: event.on24.com/wcc/r/5120218… #MCPServer #AI #automation #pentesting

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#AI is already shaping business decisions across the enterprise. It's time security caught up. Most automation in vulnerability management is still built on shaky data: scanner output, CVE databases, and CVSS scores. The result? Agents chase “critical” findings that aren’t exploitable, while medium-severity weaknesses quietly open paths to domain admin. #NodeZero MCP Server changes that equation. By feeding exploit-verified evidence into AI workflows, enterprises can finally blend real attacker proof with business context, transforming from reactive triage centers to systems that systematically close proven attack paths. This is the foundation for #FixOps: continuous Find–Fix–Verify loops where #AI acts on verified exploitability to drive immediate remediation and confirm every fix, so your team closes real exposures fast, not just discovers vulnerabilities faster. Your AI doesn’t need more data. It just needs better data — the kind only NodeZero provides. 👉 Read our full blog: horizon3.ai/intelligence/blo… 🔗 Architectural considerations for building FixOps: horizon3.ai/intelligence/blo…

If you're still reminiscing on last month's EMEA Partner Conference in Mallorca, you're not alone. It was an incredible gathering of brilliant minds, bold ideas, and a shared commitment to driving offense-driven defense across the region. Relive the highlights with us, and get excited for what's to come next year! 👇 #NodeZero #NodeZeroPartner #OffensiveSecurity

From his first job selling slices at a mall pizza stand to now leading Horizon3.ai, @snehalantani's career has one through-line: optimize for learning and let the results do the talking. In this conversation with @MasterMove_io's Craig Gould, Snehal touches on everything from: 💡 How AI is currently transforming cybersecurity; 💡 What it takes to scale from $1M → $100M; and, 💡 What it takes to build a lasting culture of a connected group of “learn it alls” that together can solve any problem as a team under pressure. Give this insightful and motivational episode a listen: mastermove.io/snehal-antani/ #NodeZero #Leadership #infosec

As #CybersecurityAwarenessMonth wraps up, note that it's a reminder — not a finish line. The real goal is to make awareness measurable and sustainable through continuous verification. Scroll to see a simple roadmap that keeps awareness alive beyond October. 👇

FedRAMP 20x demands agility: CSPs must maintain proof of controls, and 3PAOs must evaluate them in real time. #NodeZero Federal™ enables daily assurance through continuous, automated pentesting — no scrambling before submissions, just readiness on demand. 👉 Learn more: horizon3.ai/use-case/use-cas… #FedRAMP hashtag#OffensiveSecurity hashtag#pentesting

We’re proud to be sponsoring Distology Disruptor Day UK 2025, a premier event bringing together cybersecurity innovators, technology partners, and disruptors shaping the future of defense. 🇬🇧 Our team will be on site showcasing how #NodeZero empowers organizations to continuously find, fix, and verify exploitable attack paths — turning offensive insights into measurable resilience. 🔗 Learn more and register at distology.com/news-events/di…. #NodeZeroPartner #OffensiveSecurity #pentesting

Most "AI security" tools feed on assumptions — CVSS scores, unverified scanner output, threat intel without environmental context. #NodeZero MCP Server v2 feeds your AI what truly matters: proof. 🔥 Exploit-verified data from your own environment 📊 Prioritized by business impact and compliance scope 🤖 Continuous & on-demand validation through autonomous retesting This is the exploitability foundation that transforms AI from triaging scanner noise to systematically closing proven attack paths. Without it, your workflows prioritize theoretical risk. With it, they fix what attackers can actually exploit. #MCPServer #AI #OffensiveSecurity

Ready for @CrowdStrike fal.con Europe next week? Make sure you add our speaking sessions to your calendar: 🕚 Nov. 6 at 11:45 AM CET: Endpoint Security Effectiveness: War Stories from 170,000 Pentests, with H3 VP Sales, EMEA, Keith Poyser 🕐 Nov. 6 at 1:00 PM CET: Turning Detection into Validation: Using NodeZero to Test EDR Effectiveness, with H3 Sales Engineering Director, EMEA, Fred Nakhle 📍 Stop by booth 19 after for your EDR Healthcheck, where you'll discover coverage gaps, fine-tune misconfigurations and prove ROI on your EDR Investment. Learn more at horizon3.ai/endpoint-securit….

#CybersecurityAwarenessMonth comes around every October, and teams double down, rolling out phishing simulations, password strength reminders, and a wave of employee training modules. The intent is good. But awareness without verification builds confidence without proof. There’s a major disconnect between what security programs teach (what should happen) and what attackers look for (what actually happens). Attackers exploit forgotten systems, reused credentials, unpatched software, misconfigured controls, and legacy authentication paths that training alone can’t uncover. Scroll to see examples of real weaknesses uncovered by #NodeZero that prove how easily complex environments can drift from intended policy. 👇

From powering the National Security Agency's Continuous Autonomous Pentesting (CAPT) program to achieving FedRAMP® High authorization, #NodeZero Federal™ extends that same mission-proven power to CSPs and 3PAOs — delivering trusted, repeatable results for the most critical environments. 👉 Dive deeper: horizon3.ai/use-case/use-cas… #FedRAMP #OffensiveSecurity #pentesting

Agentic AI ecosystems are only as good as the data and context they’re given. Generic LLMs and security tools can’t tell you what your enterprise is actually vulnerable to, or what the downstream blast radius looks like if attackers exploit those weaknesses. That’s where the #NodeZero MCP Server changes the game. Join Horizon3.ai Sr. Technical Product Manager Brad Hong on November 12 as he shows how organizations can: ⚡ Enrich enterprise AI ecosystems with unique exploitability context — leverage NodeZero findings to feed LLMs precise, real-world data about your environment. ⚡Drive continuous validation with retests — operationalize the full Find → Fix → Verify loop injected with additional org context from other MCP servers ⚡Explore the art of the possible — see how the NodeZero MCP Server becomes a cornerstone for autonomous workflows, from security orchestration to incident response acceleration. Save your spot at event.on24.com/wcc/r/5120218…! #MCPServer #AI #automation #pentesting

💡 “The first time we ran [NodeZero], our EDR started isolating systems — it was a wake-up call that showed exactly how seamless and realistic the attacker emulation was.” — John Kiczek, CISO, @CapMetroATX 💡 “Clients constantly ask, ‘Can you help me with my EDR maturity? Is it integrated? Is it really working?’ Horizon3.ai gives us the confidence to answer yes — with proof.” — William DeForest, Global Security Ops, @Kyndryl 💡 “EDR Healthcheck made purple-teaming easy — we can test host-based alerts, verify they reach our MSSP, and know in real time whether detections are firing.” — Jason Sylvester, Director of InfoSec & Architecture, Matson 🧵

Our first-ever in-person User Group was a success — and it’s all thanks to this incredible community. ⚡ Huge shoutout to @cariberoyale for being an outstanding co-host and to Chet Patel for joining our Fireside Chat with invaluable insights. And of course, to every speaker, organizer, and participant who made the day seamless — you set the standard for what’s next. Next stops: Chicago and Atlanta! #OffensiveSecurity #pentesting #infosec

Vulnerability context without exploitability proof is noise. #NodeZero MCP Server v2 gives your AI workflows the offensive security foundation they need: ✅ Exploit-verified evidence from pentests you control ✅ Proof of downstream impact and attack chains ✅ Rapid verification through 1-Click Verify When workflows combine this with business context from your existing MCP ecosystem, AI stops triaging scanner output and starts closing proven attack paths. This is how your enterprise moves from vulnerability chatter to fact-driven autonomous action. #MCPServer #AI #cybersecurity

🚨We’ve observed active exploitation of CVE-2025-59287, affecting Windows Server Update Services (WSUS). We expect more attacker activity for this vulnerability to hit CISA KEV very soon, as more organizations are being affected. Microsoft is treating this with the highest severity, recommending customers isolate or shut down the servers fully if orgs aren’t able to patch immediately.

Security teams don’t need more noise. They need clarity. That’s why we’ve integrated #NodeZero with @ServiceNow Vulnerability Response (VR) to help organizations turn proof into action. With this new integration, exploit-verified findings from NodeZero can automatically flow into ServiceNow, creating and updating tickets with full context — affected assets, evidence, and business impact. The result: faster collaboration between IT and security, and risk-based remediation that focuses on what’s truly exploitable. ✅ No more manual exports or spreadsheets ✅ Automated workflows that prioritize real attacker risk ✅ Seamless alignment between offensive validation and IT operations Available today for all NodeZero customers, at no additional cost. Learn more: businesswire.com/news/home/2… #OffensiveSecurity #pentesting #infosec

F5 has been compromised by a nation-state threat actor that has exfiltrated product development & engineering knowledge management platforms. This includes source code and information about undisclosed vulnerabilities that were in the process of remediation. 🧵