HiddenLayer nabs $100M as enterprises rush to secure their AI deployments
When AI security startup HiddenLayer raised its $50 million Series A three years ago, one of the big questions in the space was whether the AI threats the startup was protecting against would manifest in enough quantity to make for a real market. As my former colleague Kyle Wiggers noted at the time, it was difficult to pin down real examples of attacks against AI at scale.
How quickly things have changed. Security companies are now scrambling to build products that can monitor not just agents but also the tools and add-ons they use. While there still aren’t many headlines about agents being exploited, the risk of agents going haywire during production is nevertheless real. And so the market for tools to prevent that from happening has exploded: Gartner estimatescompanies will spend $2.83 billion this year on products meant to secure AI tools, 83% more than 2025,...
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