The network intrusion detection and prevention system (IDPS) appliance market is composed of stand-alone physical and virtual appliances that inspect defined network traffic either on-premises or in the cloud. They are often located in the network to inspect traffic that has passed through perimeter security devices, such as firewalls, secure Web gateways and secure email gateways. IDPS devices are deployed in-line and perform full-stream reassembly of network traffic. They provide detection via several methods — for example, signatures, protocol anomaly detection, behavioral monitoring or heuristics, advanced threat defense (ATD) integration, and threat intelligence (TI). When deployed in-line, IDPSs can also use various techniques to detect and block attacks that are identified with high confidence; this is one of the primary benefits of this technology. Next-generation IDPSs have evolved in response to advanced targeted threats that can evade first-generation IDPSs.
Gartner defines managed detection and response (MDR) services as those that provide customers with remotely delivered security operations center (SOC) functions. These functions allow organizations to perform rapid detection, analysis, investigation and response through threat disruption and containment. They offer a turnkey experience, using a predefined technology stack that commonly covers endpoints, networks, logs and cloud. Telemetry is analyzed within a provider’s platform using a range of techniques. The MDR provider’s analyst team then performs threat hunting and incident management to deliver recommended actions to their clients. MDR offers outcome-driven security incident management that is predicated on the detection, analysis and investigation of potentially impactful security events and the delivery of active threat disruption and containment actions to respond to and mitigate the impact of cyber breaches.
MSSs provide organizations with a variety of management and operational services specific to security technologies and business outcomes for security. Capabilities include security monitoring, detection and response, exposure assessment and management as well as security consulting and security technology implementation. MSSs are delivered in a variety of modes, in the providers’ cloud infrastructure, as consultative engagements or through staff augmentation and on-premises. MSS providers offer a variety of different engagement models. These include heavily customized and consultancy-led models and commoditized technology management-driven experiences.