Twenty: cyber warfare startup hits $1bn on $100M raise

Twenty, a US startup that openly builds AI-enabled offensive cyber weapons, has raised a $100M Series B led by Accel at a $1bn valuation, making it a unicorn. The company, which counts In-Q-Tel, US Cyber Command veterans, and NSA alumni among its backers, holds contracts with the US military and intelligence community. CEO Joseph Lin argues that credible offensive cyber capability is essential for deterrence, and says the Trump administration has made offensive cyber a national priority. The raise signals a broader shift: venture capital is now openly funding offensive cyber warfare capabilities that previously existed only inside governments, raising questions about oversight, escalation, and accountability.