HiddenLayer secures $100 million as firms scramble to protect AI deployments
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| Source: TechCrunch | Original article
HiddenLayer raises $100M to expand its AI security platform as businesses accelerate efforts to safeguard AI models, agents, and associated tools.
HiddenLayer, the Austin‑based startup that builds security tools for AI models, agents and workflows, closed a $100 million Series B round led by Delta‑v Capital, with participation from Microsoft’s M12 venture arm, Morgan Stanley and Booz Allen Hamilton. The funding will be used to broaden the company’s “agentic runtime protection” suite and scale its services for enterprises that are rapidly deploying generative AI across critical functions.
The raise comes as organisations scramble to defend AI‑driven applications against adversarial attacks, vulnerability exploits and malicious code injections. HiddenLayer’s platform monitors not only the AI agents themselves but also the ancillary tools and add‑ons they rely on, a capability that security vendors are racing to replicate. The company’s recent traction includes a ten‑fold increase in annual recurring revenue over the past year and growing adoption in regulated sectors such as healthcare, where secure AI deployment is essential for patient safety and trust.
The injection of capital signals that the market sees AI security as a distinct, high‑growth vertical rather than an add‑on to traditional cyber‑defence. As enterprises embed generative models deeper into business processes, the need for continuous, runtime‑level protection is expected to intensify, prompting both established security firms and new entrants to expand their AI‑focused offerings.
Going forward, HiddenLayer’s next milestones will likely involve the rollout of its expanded runtime‑shielding tools, deeper integration with cloud providers, and potential partnerships that embed its safeguards into enterprise AI platforms. Observers will also watch how competitors such as the UK‑based Harmonic Security, which just secured seed funding for similar aims, position themselves in a market that is quickly becoming a battleground for AI‑centric cyber‑defence. As we reported on September 2, the surge in funding underscores a broader industry shift: securing AI is no longer optional, it is a prerequisite for widespread adoption.
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