Artemis, a cybersecurity startup aimed at defending against AI-powered attacks using AI, emerged from stealth after securing $70 million in venture capital funding. The Series A was led by Felicis, with participation from First Round Capital, Brightmind, Theory VC, and senior cybersecurity leaders. The company’s approach centers on continuously monitoring enterprise activity to learn what “normal” looks like and then connecting alerts into a coherent attack narrative—potentially automating containment actions like locking compromised accounts. Artemis cited the growing speed of vulnerability discovery and patching gaps as the driver for building faster, more integrated detection workflows.