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MDR Service Provider

Expand Your Security Capabilities with Scalable Detection and Response

Castra’s Managed Detection & Response (MDR) service helps your business manage the burden of 24/7 operations and support to stay protected from dynamic and emerging threats.

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Join the thousands of customers that trust Castra to implement their SIEM and strengthen their security posture

Partner With a Transparent & Reliable MDR Service Provider

Castra offers unlimited visibility into security operations and their outcomes. Our Glass Box approach gives security leaders the ability to capture valuable performance data, make informed security decisions, and communicate ROI to stakeholders effectively. Castra acts as an extension of your internal security team, providing resources and expertise when they’re needed most.



Start monitoring your security posture round-the-clock with Castra. We provide 24x7 monitoring augmented with customized alarms, dashboards, and reports.


Catch unauthorized activity before it’s too late. We specialize in crafting custom rules to detect early warning signs of malicious activity without flooding analysts with false positives.


Launch and conclude investigations into security risks without wasting precious time. Deploy automated response playbooks that address threats the moment they’re detected.

Learn "Why Castra?"

With Co-Founders Grant Leonard & Tony Simone

HubSpot Video

Technology We Use to Provide Proactive Threat Protection

Achieving operational security excellence requires two things: A competent team of expert security analysts and an optimized tech stack for them to use. Castra equips its team members with some of the most sophisticated security tools on the planet and constantly invests in expanding their product knowledge.


Security Information and Event Management (SIEM) platforms, like Exabeam and USM Anywhere, capture log data from every corner of the organization and analyze that data to detect suspicious activity. Castra has implemented over 2,000 SIEMs globally and created over 1,800 custom rules that directly address customer-specific vulnerabilities.

Threat Intelligence

Curated threat intelligence solutions like Anomali ThreatStream provide deep insight into the vulnerabilities that organizations face. By prioritizing alerts to match each organization’s risk profile, Anomali enables analysts to focus on the most critical vulnerabilities first.


Extended Detection and Response (XDR) gives analysts the power to enforce comprehensive security policies across endpoints, cloud applications, network assets, and beyond. SentinelOne Singularity XDR provides a centralized solution for automated detection and response across multiple tools and platforms, giving analysts a critical edge when addressing complex threats.

Remote Log Management

Log management isn’t just for in-house network assets. Organizations need to collect logs from users wherever they log in. Wazuh’s open-source solution for remote log management gives analysts comprehensive data on remote assets and distributed team member activities.

MDR vs In-House Security Operations

Managing security operations is time-consuming and resource intensive. Your in-house security team should be doing more than responding to alerts and putting out fires. With Castra’s MDR services scaling your security and response capabilities, you can put your team to work on strategic, high-impact initiatives that generate lasting value.

Benefits of working with a MDR provider:

  1. Access to specialized expertise in cybersecurity and threat detection
  2. Access to advanced technologies and tools for threat detection and response
  3. 24/7 monitoring and response to security incidents
  4. Faster incident response times, leading to reduced damage and downtime
  5. Reduction in costs and resource requirements associated with maintaining an in-house SOC
  6. Improved overall cybersecurity posture

How MDR Can Extend Your SIEM Capabilities

SIEM (Security Information and Event Management) technology provides a comprehensive platform for logging and storing activity data from every corner of your network. Security analysts use this data to detect advanced threats, identify vulnerabilities, and meet compliance guidelines.

Configuring, implementing, and maintaining a SIEM platform is a resource-intensive challenge. Castra provides MDR services that help organizations optimize their security posture with “glass box” methodologies. Our customers retain full ownership of their data and total visibility into security processes. We customize SIEM deployments to fit real-world needs and provide scalable 24x7 management services for those deployments.

We tailor security solutions around the unique demands of your environment.

In fact, we've created over 1,800 custom rules for SIEM that can only be found at Castra.

Watch our latest demo of Exabeam SIEM and learn how Castra customizes this technology for our customers.

HubSpot Video

5 Tiers of MDR Service Fit Your Organization’s Needs



  • 24/7 Proactive Threat Detection
  • 24/7 SOC2 Type II Security Operation Center
  • Custom Notifications, Dashboards and Reports
Learn More


  • EDR/XDR Licensing
  • 24/7 Security Operations Center
  • Primary Security Analyst
  • 24/7 Premium Alarm Monitoring & Response
  • Custom Reporting and Dashboards
Learn More


  • EDR/XDR License
  • Customize Threat Detection
  • 24/7 Alarm Monitoring & Response
Learn More

MXDR Enterprise

  • EDR/XDR License
  • Anomali ThreatStream License
  • Threat Hunting Pro
  • Customized Threat Detection
Learn More

Compare Castra's Service Tiers






MXDR Enterprise

Expert SIEM Implementation
Expert XDR Implementation
EDR/XDR License
Anomali ThreatStream Subscription
Threat Hunting Pro
Threat Hunting
Customized Threat Detection
  • Behavioral modeling and detection rules for improved alarming
Documented Incident Response
24/7 SOC
Primary Security Analyst
24/7 Premium Alarm Monitoring & Response
  • Proactive tuning, customer notification, and orchestrated response post-incident detection
Advanced Alarm & Orchestration Response (SOAR)
Custom Reporting and Dashboards
  • Notifications for alarm outputs
  • Compliance-based Dashboards
  • Custom Reporting
Recurring Monthly Security Meetings
Isolate Endpoints
Terminate Processes
Block Additional Executions

SIEM Deployment is a Marathon, not a Sprint

Building a SIEM product is challenging, and that challenge doesn’t end once the platform is running.

Your cybersecurity needs will change over time, and so will the tools and techniques threat actors use to compromise your systems. Successful SIEM operation demands continuous threat detection and analysis, informed by the latest cybersecurity research and trends.

It takes an experienced team and considerable resources to manage a SIEM platform effectively. Not only does your team need to conduct research into new cybersecurity threats and trends, but it must also actively expand its capabilities to meet the needs of enterprise growth.

There is no such thing as a “set-and-forget" SIEM platform. They demand the expertise of highly qualified security analysts who can conduct investigations and produce detailed reports. Your organization can achieve this performance by expanding its security team in partnership with Castra’s highly qualified security analysts.

Managed Detection and Response FAQs

What is Managed Detection and Response and how does it work?

MDR is a service that supplements your company's information security team with their own SOC and provides 24/7 alert monitoring and response to cyber threats. It typically includes real-time threat intelligence, vulnerability assessment, and security incident response services. 

Castra offers MDR services tailored to fit each customer's unique needs. We have 6 tiers of service with proactive threat detection and SOC management to 5000+ users with expert SIEM implementation, XDR implementation, and more. We also provide Alarm Monitoring & Response services for all customers so they can receive 24/7 coverage for their critical alerts. 

What's the difference between MDR and EDR?
The main difference between MDR and Endpoint Detection Response (EDR) is that MDR is a managed service while EDR is an on-prem or cloud solution. EDR provides value by delivering visibility into endpoint activity and allowing security teams to detect malicious behavior before it can cause damage. MDR takes this technology further by providing 24/7 monitoring and response service from a team of highly qualified security analysts. These experts are constantly monitoring and responding to incidents so your organization can focus on larger projects. 
How is MDR different from SIEM?
MDR is different from SIEM because MDR is a service offering and SIEM (Security Information and Event Management) is a technology software. When paired together, the two can become extremely efficient and effective in improving your security posture. SIEM technology focuses on collecting, aggregating, and analyzing event logs from various sources such as firewalls and endpoint security devices, while MDR focuses on providing 24/7 monitoring and response services. In other words, SIEM is the tool used to identify a threat while MDR is the service that provides the expertise and resources needed to respond quickly and effectively. 
What are the benefits of MDR?

Companies that invest in MDR services can protect their environment from cyber threats in a cost-effective manner by off-setting the cost of in-house staff. MDR simplifies the process of responding to incidents and provides the expertise needed to quickly mitigate and detect unknown threats. Additionally, MDR gives organizations the ability to free up their information security resources so they can focus on other areas of security. 

If your organization is ready to take the next step in cybersecurity and invest in MDR services, Castra can help. We offer six different tiers of managed detection and response to fit your organization's specific demands. 

Questions? We are here to answer them. Select the MDR service you are most interested in and we can talk more!