Artemis Emerges From Stealth With $70 Million in Funding

US cybersecurity startup Artemis this week emerged from stealth mode with $70 million in combined seed and Series A funding. Founded in 2025, New York-based Artemis has built an AI-based platform to detect and contain threats across applications, users, machines, and cloud workloads. Built for the AI-powered threat landscape, Artemis aims to provide defenders with the speed and adaptability of attackers. Its platform relies on a dynamic data model built from customer telemetry that combines behavioral log data with business context to identify abnormal behavior within customers’ environments. The solution generates detections based on each organization’s characteristics, autonomously investigates alerts, and identifies relevant attack paths. Customers can automatically apply remediations, the company says. Instead of storing all data upfront, Artemis retrieves it on demand from cloud sources and logs, reducing costs and providing full visibility. The solution can be used alongside existing tools, such as legacy SIEMs, and is already used by technology, banking, and financial services organizations, the company says. Artemis’ backers include Brightmind, Felicis, First Round Capital, Lockstep, Theory VC, Two Sigma Ventures, and various angel investors. “The real breakthrough isn’t just using better AI models, but in giving those models deep, structured understanding of how an organization functions, making reliable detection and automated response possible,” said Artemis co-founder and CTO Dan Shiebler. Related: Capsule Security Emerges From Stealth With $7 Million in Funding Related: Trent AI Emerges From Stealth With $13 Million in Funding Related: Variance Raises $21.5M for Compliance Investigation Platform Powered by AI Agents Related: Linx Security Raises $50 Million for Identity Security and Governance WRITTEN BY Ionut Arghire Ionut Arghire is an international correspondent for SecurityWeek. More from Ionut Arghire Capsule Security Emerges From Stealth With $7 Million in Funding 100 Chrome Extensions Steal User Data, Create Backdoor Mirax RAT Targeting Android Users in Europe Two Vulnerabilities Patched in Ivanti Neurons for ITSM  Fortinet Patches Critical FortiSandbox Vulnerabilities SAP Patches Critical ABAP Vulnerability Triad Nexus Evades Sanctions to Fuel Cybercrime Google Adds Rust DNS Parser to Pixel Phones for Better Security Latest News OpenAI Widens Access to Cybersecurity Model After Anthropic’s Mythos Reveal Data Breach at Tennessee Hospital Affects 337,000 Splunk Enterprise Update Patches Code Execution Vulnerability Microsoft Paid Out $2.3 Million at Zero Day Quest 2026 Hacking Contest NIST Prioritizes NVD Enrichment for CVEs in CISA KEV, Critical Software Cisco Patches Critical Vulnerabilities in Webex, ISE Ransomware Hits Automotive Data Expert Autovista Claude Code, Gemini CLI, GitHub Copilot Agents Vulnerable to Prompt Injection via Comments Trending Webinar: A Step-By-Step Approach To AI Governance April 28, 2026 With "Shadow AI" usage becoming prevalent in organizations, learn how to balance the need for rapid experimentation with the rigorous controls required for enterprise-grade deployment. Register Virtual Event: Threat Detection And Incident Response Summit May 20, 2026 Delve into big-picture strategies to reduce attack surfaces, improve patch management, conduct post-incident forensics, and tools and tricks needed in a modern organization. Register People on the Move ThreatModeler has appointed Kevin Gallagher as Chief Executive Officer. Thomas Bain has been appointed Chief Marketing Officer at Silent Push. The United States Department of War appointed David Vaughn as Technical Advisor for Data Infrastructure. More People On The Move Expert Insights The Hidden ROI Of Visibility: Better Decisions, Better Behavior, Better Security Beyond monitoring and compliance, visibility acts as a powerful deterrent, shaping user behavior, improving collaboration, and enabling more accurate, data-driven security decisions. (Joshua Goldfarb) The New Rules Of Engagement: Matching Agentic Attack Speed The cybersecurity response to AI-enabled nation-state threats cannot be incremental. It must be architectural. (Nadir Izrael) The Next Cybersecurity Crisis Isn’t Breaches—It’s Data You Can’t Trust Data integrity shouldn’t be seen only through the prism of a technical concern but also as a leadership issue. (Steve Durbin) Why Agentic AI Systems Need Better Governance – Lessons From OpenClaw Agentic AI platforms are shifting from passive recommendation tools to autonomous action-takers with real system access, (Etay Maor) The Human IOC: Why Security Professionals Struggle With Social Vetting Applying SOC-level rigor to the rumors, politics, and 'human intel' can make or break a security team. (Joshua Goldfarb) Flipboard Reddit Whatsapp Email