Active Defense

Ongoing defense and oversight

Technology blocks common threats. Our expert configuration and monitoring handle the rest. Active Defense bridges the gap between automated tools and true security.

How We Integrate

Active Defense isn't just a tool; it's a process. Here is how we weave active defense into our Assess, Architect, Manage framework.

Phase 1

Assess: Tuning

Goal: Determine what to watch

Inventory

We catalog all your data sources: Office 365, Firewalls, EDR, devices, workstations, and servers.

Filter Noise

Identify 'noisy' false positives that cause alert fatigue so we can focus on real signals.

Phase 2

Architect: Deployment

Goal: Connect the pipes

Deploy Sensors

Roll out lightweight agents to endpoints and build your dashboards.

Custom Rules

Create custom detection logic specific to your industry and risk profile.

Phase 3

Manage: Operation

Goal: Ongoing Protection

Intelligent Triage

Automated platform intelligence correlated with curated threat data for rapid validation.

Threat Oversight

Proactive monitoring of telemetry and security signals to intercept complex attack patterns.

Rapid Response

Instantly stopping the spread of threats through remote isolation and verified blocklists.

What You Get

Peace of mind, delivered through rigorous 24/7 monitoring.

24/7 Managed Protection

Always-On Oversight

Full implementation and expert oversight of an enterprise-grade detection platform. We handle the complexity so you get the security outcomes you need.

Monthly Forensics Reports

Detailed Insights

Detailed summaries of all blocked attacks, investigated anomalies, and threat trends, giving you full transparency into what we've caught.

Engagement Model

Simple, transparent pricing based on your environment size.

Essential

For smaller environments

✓ 24/7 Automated Monitoring
✓ Email Alerts
✓ Monthly Repo

Advanced

Full coverage & response

✓ 24/7 Human Analyst Review
✓ Active Response (Blocking)
✓ Threat Hunting

Enterprise

Complex infrastructure

✓ Custom Log Parsers
✓ Dedicated Threat Hunter
✓ IR Retainer Included

Frequently Asked Questions

What is the difference between MDR and a SIEM?

A SIEM aggregates logs but requires your team to investigate alerts. Managed Detection and Response (MDR) includes the 24/7 human analyst layer on top - meaning we investigate every alert, distinguish real threats from noise, and take active response action so you don't have to.

Can this work with our existing security tools?

Yes. We integrate with your current EDR, XDR, and log sources (Microsoft Sentinel, CrowdStrike, SentinelOne, and others). We can also deploy our own sensor stack if you don't have tools in place yet.

How quickly can you respond to an incident?

For clients on our Advanced or Enterprise tiers, our SLA targets a 15-minute initial response to critical alerts, 24 hours a day. Active response (blocking, isolation) is executed immediately upon confirmation.

What happens during onboarding?

We start with a 2-4 week onboarding phase covering environment inventory, integration of your data sources, noise filtering, and custom rule creation. You receive a service summary report at the end of onboarding.

Why D3 Cyber?

Eyes on Glass

We don't just forward alerts. Real human analysts investigate every suspicious signal.

Active Response

We have the authority to block threats immediately, preventing damage while you sleep.

Technology Independent

We work with your existing EDR/XDR tools (Microsoft, CrowdStrike, SentinelOne) or bring our own.

Sleep Soundly with Active Defense

Don't just buy tools. Buy the outcome: a clean, monitored environment.

Book Strategy Call