Socket raises $60M at $1B for AI-era software supply chain security

Socket closed a $60M Series C at a $1B valuation on 21 May 2026, led by Thrive Capital with Andreessen Horowitz participating. The product detects malicious open-source packages before they reach production; the company claims it caught the compromised Axios package six minutes after publication. The customer list is the AI dev stack itself: Anthropic, xAI, Replit, Cursor, Figma, Vercel. As agents pull more dependencies into more codebases, automated supply-chain checks stop being defensive hygiene and start being a default-install line in any agent harness.