Artificial intelligence and data security company Cyera Ltd. announced it has raised $400 million in late-stage funding today, six months after its last capital infusion, bringing the company’s valuation to $9 billion.

The Series F round was led by funds managed by Blackstone, with participation from Accel, Coatue, Cyberstarts, Georgian, Greenoaks, Lightspeed Venture Partners, Redpoint, Sapphire, Sequoia Capital and Spark. Cyera’s prior round, a $540 million raise in June 2025, valued the company at $6 billion. To date, the company has raised more than $1.7 billion.

“AI is reshaping the foundations of how every organization operates, and our mission is to ensure that this transformation happens securely,” said Cyera co-founder and Chief Executive Yotam Segev.

The adoption of AI across industries has swept through enterprise deployments, with 95% of U.S. companies now using generative AI, according to a Bain & Co. survey. As adoption surges, however, Nancy Gohring, senior research director for AI at International Data Corp., warned that “the early wave of GenAI deployments surfaced a pattern where speed sometimes outpaced safeguards.”

2025 proved to be a formative year for AI, with numerous breakthroughs in generative AI, giving rise to the adoption of enterprise-ready agentic AI. With AI agents, businesses can set loose autonomous programs capable of taking actions on their behalf — discovering knowledge, collating information, sending emails, writing code and more. The result is a broadened, fast-moving attack surface where models and agents must access data in new ways, often through sprawling permissions, shadow tools and poorly understood data flows.

Securing data so that AI systems can work safely, without exposing sensitive information to third parties or amplifying vulnerabilities, is shaping up to be one of the defining security imperatives of 2026.

To formulate a response to the shifting landscape of AI and its data needs, Cyera has converged data security posture management, data loss prevention and identity into a single platform. This year, the company introduced AI Guardian, an offering that expanded its platform into AI security.

According to Cyera, its footprint now extends to “data and AI” for 20% of the Fortune 500, including companies in financial services, retail, media and entertainment, healthcare, technology and global telecom. The company says it has grown its footprint threefold over the past 12 months, reached more than 1,100 team members and expanded across 15 countries.

“Organizations need clear visibility and strong controls to protect sensitive data across increasingly complex environments,” said Jon Raper, chief information security officer of Chevron Corp.  “That clarity is essential to securing people, assets, reputation and to maintain the trust and resilience required to operate safely and reliably, both at home and around the world.”

Segev said the funding would be used to extend the company’s scalable data access platform to address AI security issues including AI safety for employees, trusted agentic AI, ecosystem control and defending AI with AI. “Spending most of my time with our customers I deeply appreciate the importance of this pivotal moment for CISOs,” he added in a blog post.

The CEO noted that the chief information security officer role has evolved, moving beyond stewardship of networks and access control to enabling the next era of AI. Security, he argued, is no longer just a cost center, but an accelerator. He also framed AI safety as something that touches every role in the business, positioning CISOs as a “center of transformation” intersecting with privacy, compliance, legal and ownership.

He concluded that Cyera’s future direction will take into account the shifting needs of how data is shared, hosted and protected in the emerging era of AI and autonomous agents.

Image: Cyera