The power to protect your software

The world depends on your software. We give you the power to protect it.

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Stop application attacks.Gain control.Protect your business.

Attackers hide in the grey area of your application layer, where known and unknown vulnerabilities lurk. We help you add contrast, so you can see and then stop attacks.

Empowering defenders in an AI-powered world

Security teams and developers are tired of encountering false positives, enduring endless scans and using tools that miss the point.

Legacy AppSec wasn’t built for modern software or modern threats.

We built Contrast to put you back in control, with live insight, fast attack detection and protection that works from the inside out.

We bring Dev, AppSec and SecOps together around a shared view of what’s really happening inside your apps.

As attackers use AI to move faster, we use it to help you respond smarter, so you can shut down threats before they spread.

We exist to unite builders and defenders, working as one to protect what matters.

The Origin Story

Contrast Founder Jeff Williams has dedicated his life to securing the software that drives our lives.

Jeff Williams

Starting in the 1990s, Jeff worked with some of the largest companies and Government agencies in the world to improve the security of their applications.

In 2001, Jeff Williams helped create OWASP, a non-profit dedicated to improving the security of software. He also began consulting and saw that the companies that followed his plan avoided the most common breaches. He created the OWASP Top 10, so every company would have the same knowledge.

But Jeff also knew legacy AppSec solutions wouldn’t solve the problem, so he launched Contrast Security with a clear objective: to pioneer a fundamentally different, more innovative and inside-out approach to securing software. Today, companies worldwide, such as Citizens Bank, Backbase, and AARP, follow Jeff’s plan to avoid zero-days and costly breaches.

What we do

Contrast Security is the only Application and API Security platform purpose-built to detect and stop live application-layer attacks.

Through patented in-app sensors and a unified platform for Application Detection and Response and Application Security Testing, Contrast delivers real-time visibility and protection directly from inside your running applications.

As AI reshapes software development, Contrast provides the context AI needs to make fast, accurate security decisions. Unlike legacy tools that operate outside the application, Contrast protects modern software from within, closing the critical visibility blind spot in application security.

Come join us

Awards

Don’t just take our word for it, ADR is being recognized across the industry for its breakthrough approach to runtime security.

Cybersecurity_Breakthrough_Award Badge_2025
Finalist Badge_Best DevSecOps Solution
SCA-25_Finalist_Trust
"The telemetry we get from Contrast further hardens our overall security posture by extending visibility to the application and API layer, with detailed context." Jeffrey Shute, Associate Director of Information Security, The University of Texas/Texas A&M Investment Management Company (UTIMCO).

Investors