Pillar Security Raises $9M to Redefine Application Security for the Intelligence Age

Pillar Security has raised $9 million in Seed funding to secure the future of AI-integrated software, marking a major step forward in redefining application security for the era of autonomous and agentic systems. The round was led by Shield Capital, with participation from Golden Ventures, Ground Up Ventures, and several strategic angel investors.

As AI fundamentally reshapes how software is built, deployed, and behaves, traditional cybersecurity approaches are falling behind. A recent Deloitte survey revealed that 77% of cybersecurity leaders are highly concerned about AI-specific threats such as data poisoning, evasion attacks, and IP leakage, and 40% of organizations have already experienced an AI-related security incident. Pillar Security aims to address these evolving risks with a purpose-built platform designed exclusively for AI-driven and autonomous software.

What Is Pillar Security?

Pillar Security is building an end-to-end security platform engineered specifically for AI-integrated and agentic software systems. Unlike conventional tools that focus on static code or fixed data flows, Pillar’s platform secures a new generation of applications, where data becomes executable and software gains agency.

At the heart of Pillar’s solution is a next-generation AppSec framework powered by real-world AI threat intelligence. This framework not only identifies and mitigates emerging AI-specific vulnerabilities but also provides organizations with continuous visibility and adaptive protection as AI models evolve.

“AI is fundamentally changing the way we build software; it doesn’t just add another step to traditional processes; it introduces an entirely new lifecycle,” said Dor Sarig, CEO & Co-Founder at Pillar Security.

The Challenge: Securing Agentic and Autonomous Software

As organizations embed AI agents into critical workflows, from decision-making systems to software development pipelines, new forms of risk are emerging. Traditional security solutions, designed for static, rule-based environments, cannot keep pace with the dynamic, self-learning nature of AI-driven applications.

Pillar Security bridges this gap by introducing a specialized AppSec layer that adapts in real time to the behavior of intelligent systems. Its platform is designed to:

• Detect and prevent data poisoning and model manipulation attempts in AI pipelines.
• Safeguard intellectual property and sensitive datasets used by AI models.
• Continuously monitor agentic behavior to identify deviations or malicious activity.
• Unify AI development and cybersecurity workflows, enabling shared visibility and governance.

By embedding security directly into the AI lifecycle, Pillar ensures that innovation and safety can coexist, a crucial factor as enterprises increasingly rely on autonomous software agents.

Why Pillar’s Vision Matters

The cybersecurity landscape is on the brink of a paradigm shift. With AI transforming software into an active decision-making entity, organizations need to think beyond perimeter defense and static analysis. Pillar’s approach represents this new mindset, one that treats AI-driven applications not as tools, but as collaborators that must be secured and governed intelligently.

By combining AI-native threat detection with continuous monitoring and adaptive controls, Pillar’s platform redefines application security for the Intelligence Age. It empowers security leaders to anticipate AI-driven threats before they emerge and helps developers build with confidence in a landscape where code can act independently.

The Road Ahead

With its new funding, Pillar Security plans to accelerate product development, expand engineering and research teams, and broaden integrations with enterprise AI platforms and development tools. The company also intends to strengthen collaborations with security and AI leaders to shape new standards for AI-native application security.

As AI becomes the core of modern software infrastructure, the need for security frameworks that evolve at the same speed has never been greater. Pillar’s mission is clear: to secure the foundations of intelligent software and ensure that organizations can embrace AI innovation without fear.

Execweb congratulates Dor Sarig, Ziv Karliner, Hadar Yakir, and the entire Pillar Security team on this milestone. The $9 million seed round not only validates their forward-thinking vision but also marks a crucial step in building a secure, resilient, and trustworthy future for AI-powered software systems.