Nebulock Secures $25 Million to Combat Agentic Insider Threats

Nebulock, an AI-native contextual security platform, raised $25 million in Series A funding to enhance its security operations against agentic insider threats. The funding round was led by FirstMark, with participation from Bain Capital Ventures and others. Since emerging from stealth less than a year ago, Nebulock has gained traction with Fortune 500 clients, particularly in financial services and healthcare. The platform has conducted over 300 million investigations, yielding more than 4,000 high-confidence findings. A key focus is on addressing risks associated with AI tools, as demonstrated by the viral adoption of OpenClaw, which led to over 50,000 related security events across 40% of Nebulock's customer base. The company aims to shift from reactive to proactive security measures by identifying both suspicious and seemingly normal behaviors that may indicate threats. The 2026 Verizon Data Breach Investigations Report highlights that advanced threat actors are increasingly utilizing AI in their operations.

Key Points: • Nebulock raised $25 million to enhance security against AI-driven insider threats. • The platform has conducted over 300 million investigations, revealing significant security risks. • AI tools like OpenClaw have created new vulnerabilities, prompting rapid responses from Nebulock.