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Two stealth startups exit quiet mode with defense and AI security plays

Covenant, a defense startup founded this year, has revealed a long-range weapon system developed in secrecy, backed by $250 million at a valuation exceeding $1 billion. Separately, AIR Security launched its AI agent firewall after raising $50 million, led by Sequoia Capital and Greenoaks, alongside industry angel investors.

Sources: calcalistech.com · securityweek.com

“The near-simultaneous emergence of a billion-dollar defense startup and a VC-backed AI security firm underscores how stealth remains a viable path for deep-tech plays in crowded markets.”
— StartupReader
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