Category Archives: Cybersecurity

ISO/IEC 27001 is the international standard for establishing, implementing, maintaining, and continually improving an Information Security Management System (ISMS). The standard helps organizations protect their information assets through a structured framework that manages security risks. It is jointly developed by: ISO/IEC 27001 is widely recognized as the global benchmark for information security management. New to the standard? Start… Read More: ISO/IEC 27001 Standard Overview: What It Is, Requirements, and Certification… »

Organizations operating industrial environments often ask an important question: Should we implement IEC 62443 or ISO 27001 for cybersecurity? Both standards are widely recognized in the cybersecurity world, but they serve different purposes. While ISO 27001 focuses on information security management in IT environments, IEC 62443 is specifically designed to secure industrial automation and control systems. Understanding the… Read More: IEC 62443 vs ISO 27001: Key Differences Explained for OT… »

Network segmentation is one of the most important cybersecurity principles in modern SCADA and industrial control systems. It is not just a best practice. In the IEC 62443 series of standards, segmentation is a core security requirement. In simple words, network segmentation means: Do not allow every device to talk to every other device. Instead, divide the system… Read More: Network Segmentation in Industrial Control Systems (IEC 62443 Explained) »

SCADA systems provide supervisory monitoring, data acquisition, and remote control of field devices by collecting alarms and status information from distributed sites. Unlike typical IT applications, SCADA traffic is event-driven, time-sensitive, and often safety-critical. Because of this, the choice of VPN technology can directly affect how well SCADA protocols behave over wide-area or untrusted networks. WireGuard and OpenVPN… Read More: WireGuard vs OpenVPN for SCADA Systems: Key Differences »

Port 22 is the default TCP port for SSH (Secure Shell). Every SSH service runs through this single port — remote login, command execution, SFTP and SCP file transfer, port forwarding, and tunneling. When you type ssh user@server, your client connects to port 22 unless you tell it otherwise. Port 22 is also one of the most scanned… Read More: Port 22 (SSH): What It Is, How to Change and… »

IACS Cybersecurity focuses on protecting Industrial Automation and Control Systems (IACS) such as SCADA, PLCs, RTUs, DCS, IEDs, and industrial networks from cyber threats while ensuring safety, availability, and operational reliability. For operators of critical infrastructure—power utilities, oil and gas, manufacturing, water, and renewable energy—cybersecurity is no longer optional. Modern industrial systems are connected, remote-access enabled, and increasingly… Read More: IACS Cybersecurity – Protecting SCADA and Industrial Control Systems »

Modern industrial networks depend heavily on remote communication. Whether it is a control center talking to a substation, a SCADA system collecting data from a water pump, or a utility monitoring dozens of remote field stations, the network path between these locations must be reliable, secure, and predictable. Two common technologies are used today to connect a central… Read More: SCADA Networking: Site-to-Site VPN vs NAT on Private APN Explained »

IEC-60870-5-104 (IEC-104) is one of the most widely used protocols for telecontrol communication in power utilities, substations, renewable energy sites, industrial automation, and critical infrastructure networks. Its simplicity, efficiency, and ability to run over standard TCP/IP networks make it attractive for SCADA systems worldwide. But IEC-104 has a serious security problem: IEC-104 has no built-in security — no… Read More: Securing IEC-104 Traffic Over OpenVPN: A Complete Technical Guide for… »

Modern SCADA systems are no longer isolated. With the rise of remote substations, cloud monitoring, and IP-based protocols like IEC 60870-5-104, the traditional “trusted internal network” model is obsolete. That’s where Zero-Trust Architecture (ZTA) comes in — a cybersecurity framework that assumes no device, user, or network is inherently trustworthy.Instead, every connection must be verified, authenticated, and continuously… Read More: Zero-Trust Architecture for SCADA — Securing IEC 60870-5-104 Systems »