Will Tenable’s $105 million splash on Apex finally tame the wild world of AI threats?

Tenable has snapped up two-year-old Israeli startup Apex Security for a reported $105 million, bringing the Sam Altman–backed company’s AI-risk platform under the wing of the Columbia-based exposure-management giant. Apex gives security teams an at-a-glance map of every chatbot, model and prompt their employees are running, then flags shady behavior like data-leak attempts or adversarial “jailbreaks.” Tenable says the deal—its sixth Israeli buyout—plugs a fast-growing hole in corporate defenses as enterprises race to bolt generative AI onto everyday workflows. ctech

The founders, former Unit 8200 officers with Stanford and Harvard master’s degrees, raised just $8.6 million before landing this exit—proof, analysts say, that demand for AI-specific security is rocketing. Folding Apex into Tenable’s broader exposure-management stack means customers can track traditional vulnerabilities and AI risks from the same console, a perk early adopters have pushed for as deepfakes, prompt injections and model-poisoning attacks move from theory to board-level worry. ctech