Security | Threat Detection | Cyberattacks | DevSecOps | Compliance

What is Managed Detection and Response (MDR)?

As technology grows at a rapid pace, many organizations have switched to new ways of working. Now, hybrid work environments are extremely common, with many organizations hiring employees who work remotely. And then there is the rapid growth of artificial intelligence (AI), which has further changed the way operations are carried out in organizations. Technology has significantly improved the efficiency and accuracy of work, but it has also increased the attack surface.

Sophos MDR: Define MDR Contacts in Sophos Central

A step-by-step tutorial showing you how to define your Sophos Managed Detection and Response (MDR) authorized contacts and threat response mode in Sophos Central. As a Sophos MDR customer, assigning authorized contacts lets you fully utilize the service. This instructs the Sophos MDR Operations team who to contact and how to take action during an active threat. You're prompted to take these steps in Sophos Central after activating a new Sophos MDR license, and you can modify this information at any time.

EDR and MDR for SMBs: enterprise-grade protection without an enterprise SOC

EDR (endpoint detection and response) is no longer an enterprise-only technology. SMBs face many of the same attacker techniques as larger organizations, but generally have fewer security and recovery resources available to contain the impact. Modern EDR platforms, especially when delivered through MDR (managed detection and response) and extended where needed with XDR (extended detection and response), make enterprise-grade protection operationally feasible for MSPs to deliver to SMB clients.

Managed EDR and XDR services: how MDR delivers 24/7 protection for MSPs

EDR (endpoint detection and response) and XDR (extended detection and response) are technologies. MDR (managed detection and response) is the managed service that continuously operates them — the 24/7/365 SOC team that monitors, investigates and responds to threats on the client’s behalf, built on top of EDR, XDR, or another detection stack.

NGAV vs EDR vs XDR vs MDR: how to choose the right detection and response approach

NGAV (next-generation antivirus), EDR (endpoint detection and response), XDR (extended detection and response), and MDR (managed detection and response) are not four separate products bought independently — they are overlapping capabilities and delivery models. NGAV is a prevention capability, normally built into an endpoint protection platform or an EDR solution, that uses AI and behavioral analysis to block known and unknown threats.

Is an AI SOC Better Than MDR? What Security Teams Should Weigh

Security teams are expected to investigate more alerts than they have people to handle. IBM's 2025 Cost of a Data Breach Report puts a number on what that gap costs: organizations take an average of 158 days to identify a breach, and a further 83 days to contain it. That is 241 days of exposure, the fastest pace in nine years, and still measured in months. For most SOC teams, the bottleneck was never finding threats. It was having enough people to do anything about them.

Why Traditional Security Monitoring Is No Longer Enough in 2026

Cybersecurity has become significantly more complex over the past few years. Attackers no longer rely solely on mass phishing campaigns or simple malware. Modern threat actors use automation, artificial intelligence, credential theft, living-off-the-land techniques, and multi-stage attacks designed to evade traditional security controls. As a result, organizations that still depend on conventional monitoring tools often struggle to detect and contain threats before damage occurs.

Arctic Wolf Named a Leader in the 2026 IDC MarketScape for Worldwide Managed Detection and Response Service for Midmarket

Midmarket security teams face the same adversaries as the largest enterprises, often with a fraction of the staff and budget. Alert volumes keep climbing, AI-driven threats are accelerating, and lean teams are expected to do more with fewer resources. What these organizations need is world-class AI-led security operations that are actually within reach.

6 Questions to Ask Your Current MDR Provider

Most security providers can describe what they should be able to do. Fewer can demonstrate what they actually see, track, and respond to in live environments. That distinction matters more now than it did even a year ago. Attack surfaces have expanded beyond users and endpoints into machine identities, autonomous systems, and internet-facing infrastructure rapidly. At the same time, detection claims have become broader (often without a corresponding increase in observable capability).