Email security refers collectively to the prediction, prevention, detection and response framework used to provide attack protection and access protection for email. Email security spans gateways, email systems, user behavior, content security, and various supporting processes, services and adjacent security architecture. Effective email security requires not only the selection of the correct products, with the required capabilities and configurations, but also having the right operational procedures in place.
Network detection and response (NDR) products detect abnormal system behaviors by applying behavioral analytics to network traffic data. They continuously analyze raw network packets or traffic metadata between internal networks (east-west) and public networks (north-south). NDR can be delivered as a combination of hardware and software appliances for sensors, and a management and orchestration console in the form of an on-premises software or SaaS.
Gartner defines operational technology (OT) as “hardware and software that detects or causes a change, through direct monitoring and/or control of industrial equipment, assets, processes and events”. OT security includes practices and technologies used to protect them, but these practices and technologies are now evolving into distinct categories to address the growing threats, security practices and vendor dynamics.