It’s an unusually cold winter morning in Houston, and Craig Riddell is settling into his new role as Wallarm’s Global Field CISO. It’s a position that suits him down to the ground, blending technical depth, empathy, business acumen, and, what Craig believes, the most underrated skill in cybersecurity: curiosity. Like so many of us, Craig got into cybersecurity by accident. He first learned Unix under the guidance of a mentor while transitioning out of the…
You probably think the security mantra “you can’t protect what you don’t know about” is an inarguable truth. But you would be wrong. It doesn’t hold water in today’s threat landscape. Of course, it sounds reasonable. Before you secure APIs, you must first discover, inventory, and document them exhaustively. The problem is that this way of thinking has hardened into dogma and ignores how attackers actually attack modern systems. Modern attackers abuse typical, legitimate behaviors…
APIs are one of the most important technologies in digital business ecosystems. And yet, the responsibility for their security often falls to AppSec teams – and that’s a problem. This organizational mismatch creates systemic risk: business teams assume APIs are “secured,” while attackers exploit logic flaws, authorization gaps, and automated attacks in production. As Tim Erlin noted recently, “These are not exploits of a specific vulnerability, but abuse of an API.” How API Security Became…
API security is becoming more important by the day and skilled practitioners are in high demand. Now’s the time to level up your API security skillset. Wallarm University, our free training course, provides security analysts, engineers, and practitioners with hands-on skills you can’t get from documentation, videos, or traditional courses. Run real attacks, investigate real signals, and learn exactly how to defend API environments when it counts. Here are the 7 reasons you should register. …
Is an AI-to-AI attack scenario a science fiction possibility only for blockbusters like the Terminator series of movies? Well, maybe not! Researchers recently discovered that one AI agent can “inject malicious instructions into a conversation, hiding them among otherwise benign client requests and server responses.” While known AI threats involve tricking an agent with malicious data, this new threat exploits a property of the Agent2Agent (A2A) protocol to remember recent interactions and maintain coherent conversations.…
Lefteris Tzelepis, CISO at Steelmet /Viohalco Companies, was shaped by cybersecurity. From his early exposure to real-world attacks at the Greek Ministry of Defense to building and leading security programs inside complex enterprises, his career mirrors the evolution of the CISO role itself. Now a group CISO overseeing security across multiple organizations, Lefteris brings a practitioner’s mindset to leadership and incident response. In this spotlight, he shares how military-grade security thinking influenced his approach, why…