For over a decade, Dutch-born software engineer turned cybersecurity architect Tayfun Kayahan worked with some of Europe’s largest enterprises. From cloud deployments to threat modeling, he sat at the center of critical IT infrastructure decisions. Yet in every project, he noticed the same alarming gap: no one really knew what was exposed and misconfigured.
“CISOs were asking for reports, engineers couldn’t easily deliver them, and leadership couldn’t follow what was going on,” he recalls. “It didn’t matter how advanced the setup was, there was no central visibility.”
That insight led to the creation of Tresal, an Amsterdam-based cloud security platform designed to give companies full control of their digital footprint. From public-facing assets to complex, multi-cloud infrastructures, Tresal helps teams stay one step ahead, before attackers ever get a chance.
Know what’s exposed. Before attackers do.
The cybersecurity landscape is full of reactive tools. What sets Tresal apart is its proactive visibility, giving teams continuous insight into what’s exposed, misconfigured, or shadowed across AWS, Azure, GCP, and hybrid environments.
Tresal combines Attack Surface Monitoring (ASM) with Cloud Security Posture Management (CSPM) into one seamless, unified platform. It’s designed not only for engineers, but for CISOs and executives, offering human-readable insights, real-time prioritization, and step-by-step remediation guidance.
In short, it speaks the language of security across the org chart. “We built it to be usable by any function, not just the security team,” Tayfun explains. “There’s a UX problem in cybersecurity, and we’re fixing that.”
From early on, that mission resonated. Within weeks of launching its free Quick Scan tool, Tresal began gaining traction through word of mouth. Today, the platform performs over 2,000 public scans per day.
“We’re not just detecting issues,” says Tayfun. “We’re preventing headlines.”
We’re building a security layer that’s as intuitive as it is powerful
One of Tresal’s biggest achievements is making security accessible without sacrificing depth. Every finding comes with contextual, actionable insights, written in plain language, and remediation paths that anyone on the team can follow.
This approach is already winning over a diverse user base. From small SaaS startups to large European enterprises, customers appreciate how Tresal bridges the gap between technical granularity and strategic clarity.
But the platform’s power lies not just in its usability, but in its scale. Tresal is building a vast integration ecosystem, aiming to support over 2,000 security and infrastructure tools in the next three years. This means teams using tools like EDRs, DevOps stacks, cloud access managers, or compliance platforms can plug directly into Tresal, turning scattered security signals into centralized clarity.
“Security doesn’t live in a silo,” Tayfun says. “So neither should your tools.”
Our ambition is to become the default visibility layer for modern IT
Tresal’s roadmap is bold but calculated. The team is focusing on EU-wide expansion, with a clear view toward scaling globally. The vision? To become a standard layer in every IT environment, regardless of company size or cloud maturity.
With growth accelerating and traction compounding, Tayfun wants Tresal to reach 500,000 quick scans a day in the coming years. But the goal isn’t just numbers – it’s impact.
“Our purpose is simple,” he explains. “We want businesses to see what’s exposed, understand the risk, and fix it, before it becomes a breach. That’s the mindset guiding everything we build.”
It’s a mindset forged from experience. Tayfun’s journey from software engineer to Cyber Security architect to founder reflects the lived frustration of seeing too many companies play catch-up with their own systems.
“Every time I joined a new client project, I saw the same blind spots,” he says. “We’re closing those gaps, once and for all.”
In a world where threats are increasingly automated and attackers move fast, Tresal is giving defenders the tools, and the clarity, to move faster.
