Nebulock Raises $25 Million for AI-Native Contextual Security

Boston-based cybersecurity startup Nebulock has raised 25 million dollars in Series A funding, bringing its total funding to over 33 million dollars, with FirstMark leading the round. The company, which emerged from stealth a year ago, uses AI-powered autonomous threat hunting to track behavioral patterns across endpoints, cloud, identity, and network systems, creating what they call a "behavioral system of record" that can spot suspicious activities before they become breaches. The new funding will go toward expanding the platform's capabilities and hiring across engineering and go-to-market teams as the company aims to help security teams shift from reactive to proactive protection.