Bold raises USD $40m for AI-powered endpoint security

Bold Security has emerged from stealth after raising $40 million in funding backed by Bessemer Venture Partners, Picture Capital, and Red Dot Capital Partners.

The company is targeting endpoint protection as AI tools increasingly run directly on laptops, desktops, and other everyday work devices. Bold argues that security teams need better visibility into how users and AI systems handle sensitive data on those endpoints.

Bold was founded by CEO Nati Hazut, CPO Hadar Krasner, and CTO Omri Mallis. Hazut previously founded Polyrize, a data security company acquired by Varonis. He also founded SAM, whose technology is used by telecom providers including Verizon and Virgin Media and, according to Hazut, protects more than 500 million connected devices globally.

Endpoint focus

Bold centres its approach on running AI models locally on endpoint devices rather than relying on cloud-based analysis. It says this reduces latency and avoids sending sensitive data off-device, while addressing privacy concerns that can arise when data is processed centrally.

Traditional endpoint security tools typically rely on signatures, behavioural rules, and telemetry sent to a central platform for correlation. Bold is pitching a system that interprets user behaviour on the device and flags risky activity as it happens. It links this to the growing use of AI copilots and autonomous tools in business workflows, where prompts, generated content, and automated actions can create new routes for data exposure.

Bold says the product focuses on what workers and AI tools are doing on enterprise edge devices, enabling real-time risk detection tied to business context and user activity. It also says the approach reduces the number of security alerts teams need to triage.

Early customers

Bold named Shutterfly and Tekion as customers and said it is working with Fortune 500 companies. It did not disclose how many organisations are running the product in production, how deployments are priced, or how long onboarding typically takes.

Bold says early deployments have reduced alert volumes by up to 90 percent. Security teams often face pressure from high alert volumes, which can slow investigations and contribute to missed incidents. Endpoint detection and response vendors have increasingly used automation and machine learning to reduce noise, though effectiveness varies by environment and tuning.

Investor view

Investors framed the round as a bet on shifting enterprise computing patterns. The rise of on-device AI, alongside continued hybrid work and large fleets of managed endpoints, has renewed attention on endpoints after years of investment focused on cloud security controls.

"For years, the endpoint was the industry's biggest blind spot. A decade ago, we assumed everything would consolidate in the cloud, and the problem would solve itself," Hazut said. "The AI boom didn't just challenge that assumption, it completely reversed it. AI has opened up significant new security gaps, but it has also created the path to solving them. That's what led us to start Bold, and what continues to drive how we're building the company."

Bessemer Venture Partners partner Amit Karp said the firm viewed Bold's team as a key factor alongside its product direction.

"Like the rest of the world, we're watching AI fundamentally reshape how organizations operate, and the security challenges that come with it," Karp said. "We chose to back Bold because we believe deeply in their vision, and even more in their team. This is a group of founders who have successfully brought products to market across agent-based systems, insider risk, and data security. That combination of deep technical experience and real-world operating insight puts them in a rare position to solve the next generation of endpoint risk."

Security operations

Shutterfly CISO Jeff Simon said the product helps balance security controls with user experience as staff incorporate AI tools into routine work.

"One of the biggest challenges with endpoint security is protecting users without slowing them down," Simon said. "As AI becomes part of daily workflows, Bold helps us apply security in a way that's effective but unobtrusive, so teams can keep moving fast without creating new risks."

Bold plans to use the funding to expand go-to-market efforts and continue developing its platform. It also plans to scale globally as it invests further in edge AI methods for real-time security in enterprise environments.