Cybersecurity Glossary
Search and browse Zentera's library of Zero Trust and cybersecurity guides.
How to Govern AI Agent Credentials Without Exposing Enterprise API Keys
Describes credential substitution — issuing AI agents temporary substitute credentials while a central controller applies the real enterprise credential only at request time — so agents never hold durable secrets.
Read more →The Lethal Trifecta: What It Is, and Why Most AI Agents Already Meet the Conditions
Explains the “lethal trifecta” — an AI agent with untrusted input access, sensitive data access, and external communication ability — and why most deployed agents already meet all three conditions.
Read more →The Weights Are Coming Home: Why Enterprises Are Moving AI On Premises, and Even On Device
Explains why enterprises are increasingly running open-weight AI models on their own infrastructure — for data control, cost efficiency, regulatory compliance, and model ownership.
Read more →How to Secure AI Agent Access to Operational Technology
Presents six Zero Trust controls for securing AI agent access to OT systems, based on joint CISA/NSA/Five Eyes guidance.
Read more →MCP Security: What Enterprise Security Teams Need to Know
MCP security governs Model Context Protocol servers at the deployment boundary — controlling which tools an AI agent can use, enforcing permitted actions at runtime, and keeping credentials out of reach.
Read more →The Identity Gap at the Heart of Agentic AI Security
Argues that AI agents typically lack distinct cryptographic identities and instead inherit service-account permissions, undermining Zero Trust's requirement for verifiable identity.
Read more →Rogue AI Agents: Why Policy Controls Are Not Enough
Argues that securing AI agents requires architectural containment at the network layer, since a compromised agent inherits every permission attached to its credentials regardless of policy.
Read more →Zero Trust Architecture for Agentic AI
Proposes enclave-based architecture and NIST zero-trust principles adapted for autonomous AI agents, including per-agent identity, least-privilege project boundaries, and breach-assumption design.
Read more →Software-Defined Perimeter Explained
Explains Software-Defined Perimeter (SDP) as an identity-driven alternative to firewalls and VPNs, making resources invisible until a user is authenticated and authorized for that specific application.
Read more →Critical Infrastructure Protection: What It Is and Why It Matters to Utilities
Defines critical infrastructure protection (CIP) for utilities, covering CISA's 16 critical infrastructure sectors and emerging regulatory frameworks like NSM-22.
Read more →Cybersecurity Frameworks: Key Features and Benefits
Overview of common cybersecurity framework features and the benefits of adopting one.
Read more →What is a Zero Trust DMZ for OT?
A demilitarized zone (DMZ) is a network segment between corporate infrastructure and the internet; a Zero Trust DMZ enforces authentication and authorization policies for OT environments.
Read more →SASE Overlay: An Intro
Introduces Zentera's CoIP SASE overlay, which provides application-oriented connectivity by treating network security as an access-control problem rather than an infrastructure build.
Read more →Open-Weight Model Security
Open-weight model security is the practice of verifying model artifacts, isolating infrastructure, and constraining agents through independently enforced controls.
Read more →Agentic AI Security: The Complete Guide
Learn how to govern autonomous AI agents with Zero Trust security, covering non-human-identity governance, attack surfaces, and execution control frameworks.
Read more →What Is a DMZ? Network Security Fundamentals and Zero Trust Evolution
Explains demilitarized zone (DMZ) fundamentals and how Zero Trust security extends the DMZ concept for OT and industrial networks.
Read more →What Is Zero Trust Security and Why It Matters
A comprehensive guide to the Zero Trust framework redefining cybersecurity.
Read more →What Is Microsegmentation in Cybersecurity
A comprehensive guide to microsegmentation and its role in modern network security.
Read more →What Is SCADA Security? A Practical Guide for Critical Infrastructure
SCADA security protects industrial control systems managing critical infrastructure — covers threats, standards, best practices, and Zero Trust approaches.
Read more →Role-Based Access Control (RBAC): Complete Guide to Zero Trust RBAC
Explains how role-based access control functions within Zero Trust architectures, covering implementation strategies and integration with network segmentation.
Read more →What Is Ransomware? Definition, How It Works, and How to Respond
Ransomware denies access to files or systems and demands payment to restore access or prevent the release of stolen data.
Read more →Protect Crown-Jewel Assets from the AI Agents You Authorized
Explains the distinction between outer security boundaries (sandboxes for untrusted agents) and inner boundaries (asset wrappers) needed to stop authorized AI agents from reaching crown-jewel assets.
Read more →A Guide to the NIST Zero Trust Architecture
A comprehensive summary of NIST SP 800-207, covering the history, basics, deployment models, and key considerations for Zero Trust Architecture implementation.
Read more →What is an Application Network?
An Application Network is a private overlay mesh that connects application servers across network domains using outbound TLS tunnels, simplifying access policy into a single “who can access what” framework.
Read more →What is SASE?
Explains Secure Access Service Edge (SASE), one of the leading trends among cybersecurity vendors — its potential, key drivers, and limitations.
Read more →Mastering Microsegmentation: North-South vs. East-West Strategies
Explains the difference between north-south and east-west network traffic in microsegmentation, and why east-west traffic between hosts on the same subnet needs additional protection to properly implement Zero Trust.
Read more →Microsegmentation Deployment Models
Describes three microsegmentation deployment models — agent-based, hypervisor-based, and agentless — and compares their fit across bare metal, VMs, cloud, containers, and IoT.
Read more →No entries match your search.
