Pillar Security

At Pillar Security, we envision a future where trust in artificial intelligence is foundational to every industry and innovation. Our mission drives us to secure the AI software lifecycle comprehensively, addressing unique AI risks with a precision that only an AI-native platform can achieve.

We are building a dynamic defense system that evolves with AI itself—leveraging extensive threat intelligence and continuous feedback to safeguard AI models and workflows against emerging threats like data poisoning, model integrity attacks, and autonomous AI agent vulnerabilities.

By championing holistic AI security, we aim to empower enterprises worldwide to confidently harness AI's transformative potential, securing the technologies that will shape tomorrow’s world.

We've been tracking Pillar Security since they emerged from stealth in 2023, and honestly, they caught our attention for all the right reasons. While most cybersecurity companies are scrambling to retrofit their existing tools for AI workloads, Pillar took a different approach—they built their entire platform from scratch specifically for AI threats.

What initially drew us in was their founders' pedigree. CEO Dor Sarig and CTO Ziv Karliner aren't your typical startup duo—they're battle-tested veterans from Israel's cybersecurity scene with deep experience in both offensive and defensive security. That combination is rare and valuable.

The AI-First Difference

Here's where Pillar gets interesting: they're not just slapping AI security features onto an existing platform. Their entire architecture is designed around what they call a "closed feedback loop"—essentially, every threat they detect at one stage of the AI lifecycle feeds intelligence back to improve protection at other stages.

We found their approach refreshingly comprehensive. Most AI security tools focus on either development-time issues or runtime protection, but Pillar covers the full spectrum from design through deployment. It's like having a security team that actually understands how modern AI development works.

The Threat Intelligence Edge

What really impressed us was their claim of analyzing over 50 million AI application interactions to build their threat intelligence feed. That's not just marketing fluff—it translates into real-world insights about how AI systems actually get attacked.

Their research contributions back this up. They've published some genuinely eye-opening findings, including exposing backdoor vulnerabilities in GitHub Copilot that had the security community talking. When a startup is doing research that moves the industry forward, that's a good sign.

Who Should Pay Attention

Pillar isn't trying to be everything to everyone, which we appreciate. They're laser-focused on enterprises that are seriously integrating AI into critical operations—think Fortune 500 companies and AI-native startups that can't afford to treat AI security as an afterthought.

Their customer roster includes names like Similarweb and AvidXchange, suggesting they're already proving their value with real enterprise workloads. For organizations in heavily regulated industries like finance and healthcare, Pillar's compliance-aware approach seems particularly relevant.

With $9 million in funding and recognition from Frost & Sullivan, Pillar appears to be hitting the right notes with both investors and industry analysts. They're still young, but in the fast-moving world of AI security, being purpose-built for the problem might just be their biggest advantage.