View source for Definition:Managed detection and response (MDR)

🛡️ '''Managed detection and response (MDR)''' is an outsourced cybersecurity service that combines continuous monitoring, threat detection, and active incident response — and it has become a pivotal factor in how [[Definition:Cyber insurance | cyber insurers]] evaluate, price, and manage risk. Unlike basic antivirus or firewall solutions, MDR providers staff dedicated security operations centers that analyze telemetry from endpoints, networks, and cloud environments around the clock, escalating and often remediating threats before they mature into full-blown breaches that trigger [[Definition:Claims | insurance claims]].

🔧 From an insurance-operations standpoint, MDR adoption by a policyholder signals a meaningfully lower risk profile. During the [[Definition:Underwriting | underwriting]] process for [[Definition:Cyber insurance | cyber coverage]], carriers and [[Definition:Managing general agent (MGA) | MGAs]] increasingly treat the presence of a reputable MDR provider as a favorable control — sometimes offering reduced [[Definition:Premium | premiums]], lower [[Definition:Retention | retentions]], or broader coverage terms. Some [[Definition:Insurtech | insurtech]] platforms operating under the [[Definition:InsurSec | InsurSec]] model go further, embedding MDR capabilities directly into the insurance product so that telemetry flows back to the [[Definition:Underwriting | underwriter]] in near-real time. When an incident does occur, the MDR provider's rapid containment can dramatically reduce [[Definition:Loss severity | loss severity]] — cutting costs related to forensics, business interruption, regulatory fines, and [[Definition:Third-party liability | third-party liability]] — which in turn benefits the insurer's [[Definition:Loss ratio | loss ratio]].

📈 The growing prominence of MDR within insurance reflects a broader shift from purely reactive indemnification toward proactive loss prevention. Carriers that encourage or require MDR adoption are effectively investing in the quality of their portfolio, not just selecting risks at the point of application. For [[Definition:Insurance broker | brokers]], understanding whether a client has MDR in place — and which provider and service tier — has become as important as knowing the client's revenue or industry sector when approaching the cyber market. In regions such as North America and Europe, where [[Definition:Ransomware | ransomware]] losses drove significant market hardening in the early 2020s, MDR adoption was one of the key controls that helped restore underwriting confidence and expand [[Definition:Capacity | capacity]] for well-defended insureds.

'''Related concepts:'''
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* [[Definition:Cyber insurance]]
* [[Definition:Managed extended detection and response (MXDR)]]
* [[Definition:InsurSec]]
* [[Definition:Endpoint detection and response (EDR)]]
* [[Definition:Incident response plan]]
* [[Definition:Ransomware]]
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