Industrial firewalls are specialized network security devices designed to protect industrial control systems (ICS) and operational technology (OT) environments from unauthorized access, cyber threats, and lateral movement within industrial networks. Unlike general-purpose IT firewalls, industrial firewalls are engineered to address the unique protocols, communication patterns, and reliability requirements found in sectors such as manufacturing, energy, utilities, and critical infrastructure. Core capabilities of industrial firewalls include deep packet inspection for industrial protocols, segmentation of control networks, access control based on device roles, and support for high availability in mission-critical environments. These solutions often provide granular policy enforcement tailored to SCADA, DCS, and PLC communications, as well as logging and alerting features suitable for industrial risk management and compliance. Industrial firewalls are primarily deployed by OT security teams, plant operators, and industrial network architects seeking to safeguard production systems from both external and internal threats. They differ from traditional IT firewalls by offering protocol awareness for industrial standards and by operating reliably in harsh physical environments, whereas adjacent categories like data diodes or intrusion detection systems focus on unidirectional data flow or threat monitoring rather than active traffic control. Cyberin serves as a neutral platform for discovering and comparing industrial firewall solutions to support informed decision-making.