Mastering the Digital Currents: The Crucial Security Role of the Transport Layer

As we continue our journey through the OSI model, today’s focus shifts to Layer 4: the Transport Layer. This layer holds a special place in cybersecurity as the critical link between network services and our daily applications. My experience across Operational Technology (OT) and Information Technology (IT) has revealed the nuanced complexities and the paramount […]

Securing the Digital Frontier: The Vital Role of the Network Layer in Cybersecurity

Welcome back to our cybersecurity exploration, Tea with C series. Today, we delve into the heart of network architecture and its guardian role in cybersecurity: the network layer, or as it’s technically known, Layer 3 of the OSI model. My journey through the realms of Operational Technology (OT) and Information Technology (IT) has equipped me […]

Demystify the Layers of the OSI Model: The Data Link Layer

In the latest edition of “Tea with C,” I took a deep dive into the Data Link Layer‘s complexities, shedding light on its critical role in the secure and efficient transmission of data across networks. My aim was to bridge the gap between the often-siloed realms of Operational Technology (OT) and Information Technology (IT), focusing […]

Securing the Foundation: Mastering the Physical Layer in OT Cybersecurity

In today’s rapidly evolving cybersecurity landscape within the Operational Technology (OT) industry, understanding the nuances of Layer 1 of the OSI model is paramount. This foundational layer, the bedrock upon which our data transmission and physical processes rest, encompasses the mechanical, electrical, and procedural interfaces through which our data flows. From copper and fiber optics […]

The OSI Model Fundamentals and Cybersecurity Basics in the Context of OT and CPS

By Cherise Esparza, President & Co-Founder  In the intertwined worlds of Operational Technology (OT) and Cyber-Physical Systems (CPS), a deep understanding of the OSI Model is not just beneficial; it’s a necessity. The seven-layer OSI Model provides a blueprint for understanding network functionality and identifying potential security vulnerabilities, particularly crucial in the OT and CPS […]

Cost-Efficient Cybersecurity: Top Strategies for CISOs in 2024

In the realm of global enterprise cybersecurity, Chief Information Security Officers (CISOs) face the dual challenge of countering ever-evolving cyber threats and managing tight budgets. For those looking to enhance their cybersecurity strategy while maintaining fiscal responsibility, here are key approaches that harmonize security needs with cost efficiency. Embracing Agile methodologies, implementing an MVP approach, […]

NIST updates bring a common cyber security language to more users with enhanced risk management.

The world’s leading cyber security guidance is getting its first major update since it was released nearly ten years ago. The National Institute of Standards and Technology (NIST) has used community feedback to update its widely used cyber-security framework to help benefit sectors beyond critical infrastructure.   As more critical infrastructure moved online, the White House […]

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