Glow, a cybersecurity startup founded by former Meta and Snowflake executives, has launched out of stealth mode as a unicorn, arguing that the rise of artificial intelligence requires a fundamentally new approach to securing employee devices. The Palo Alto-based firm announced a $180 million all-equity Series A round that values it at $1.2 billion, backed by major investors including Sequoia Capital, Cyberstarts and Greenoaks. The move comes as businesses increasingly deploy AI tools while attackers use generative AI to automate phishing and malware, intensifying pressure on traditional endpoint security providers.

Founded in 2025 by chief executive Roi Tiger and colleagues from Meta, Snowflake and Claroty, Glow uses AI agents to continuously map corporate environments, assess risk and enforce security policies across laptops, servers and other devices, drawing on models from Anthropic and Google via Amazon Bedrock. The company says it already serves paying customers in healthcare, retail and financial services, with deployments spanning tens of thousands of devices, though it declined to name clients. It enters a market dominated by CrowdStrike, Microsoft, SentinelOne and Palo Alto Networks, positioning itself as focused on preventing threats rather than merely detecting them after the fact.