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    Posts written by Tom Horyn

    Tom Horyn is Director of Marketing at Zentera Systems, where he leads go-to-market strategy, demand generation, and content across the company's Zero Trust portfolio - including the CoIP Platform, Virtual Chambers microsegmentation, and Ensage AI.
    With over two decades of marketing experience across cybersecurity and enterprise SaaS, Tom has held senior roles at companies ranging from early-stage startups to large-scale enterprises. His background spans demand generation, digital marketing, analytics, ABM, and content strategy, with a consistent focus on turning complex technology into clear, compelling narratives for technical and business audiences.
    Having spent his career at the intersection of cybersecurity and marketing, Tom writes for practitioner audiences with a focus on Zero Trust architecture, AI agent security, and critical infrastructure protection.


    AI

    How to Govern AI Agent Credentials Without Exposing Enterprise API Keys

    OpenAI now lets you scope an API key to a single project and restrict what it can call. It's easy to look at that and consider the credential problem handled. It's a reasonable instinct and it's wrong: scoping limits what a stolen key can do. It ...
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    AI

    The Lethal Trifecta: What It Is, and Why Most AI Agents Already Meet the Conditions

    AI agents are shipping code, closing tickets, and taking action with less human review every quarter. Eighty percent of enterprises now embed an AI agent in at least one production application, up from 33 percent two years ago, according to ...
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    AI

    MCP Security: What Enterprise Security Teams Need to Know

    MCP security is the practice of governing Model Context Protocol servers at the deployment boundary: understanding how MCP expands an AI agent's attack surface, protecting against manipulation by untrusted servers, controlling which tools an agent ...
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    Cybersecurity

    When the Attack Path Reaches Your AI Agents: Why Closing Exposures Is Not Enough

    An AI agent that reads from a cloud storage bucket, executes tasks through serverless functions, and authenticates through existing IAM roles inherits every security exposure those systems carried before the agent existed. The agent did not ...
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    Zero Trust

    Zero Trust Architecture for Agentic AI in 2026

    Zero trust architecture for agentic AI means treating every AI agent as an untrusted principal that must authenticate, operate within a defined boundary, and produce an auditable record of every action it takes. Unlike human users or traditional ...
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    News

    When a Vendor Gets Breached, Your Team Inherits the Incident

    TL;DR: On April 24, 2026, Medtronic confirmed that hackers accessed data in its corporate IT systems. Medical devices and hospital customer networks were unaffected, the company said. But hospital security teams still spent the following days ...
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    Zero Trust

    How to Cloak Critical Infrastructure: Protecting Internet-Exposed PLCs Without Redesigning Industrial Networks

    TL;DR: On April 7, 2026, CISA joint advisory AA26-097A confirmed active exploitation of CVE-2021-22681 in Rockwell Automation Logix controllers by the Iranian IRGC-linked group CyberAv3ngers, with operational disruption and financial loss reported ...
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    Zero Trust

    When Your AI Agent Goes Rogue: The Security Gap Nobody Planned For

    Two real 2024 incidents expose the AI agent security gap most enterprises haven't closed: autonomous agents operating without enforced boundaries, inside and outside approved frameworks.
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    Cybersecurity

    Why Healthcare Ransomware Attacks Keep Shutting Down Hospitals

    On the morning of February 19, 2026, the University of Mississippi Medical Center - Mississippi's only academic medical center - woke up to a healthcare ransomware attack that took down its Epic electronic health records system, its phone lines, and ...
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    News

    How Ransomware Spreads Laterally: Lessons from the SmarterTools Breach

    In late January 2026, SmarterTools confirmed that the Warlock (also known as Storm-2603) ransomware group breached its network by exploiting an unpatched SmarterMail server. According to the company's Chief Commercial Officer, the incident began on ...
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