Managed Detection And Response in Marietta, GA

Managed Detection and Response for Marietta, GA Businesses

Ransomware operators and credential-theft campaigns do not pause while your IT team is off the clock. COMNEXIA, headquartered in Roswell, GA and serving Cobb County businesses since 1991, delivers 24/7 Managed Detection and Response (MDR) so that a suspicious login at 2 a.m. triggers an analyst response, not a Monday-morning inbox surprise. This page explains exactly what that service looks like, which platforms run it, and why it matters specifically to Marietta-area businesses, including auto dealerships subject to the FTC Safeguards Rule.

What Managed Detection and Response Actually Does

MDR combines endpoint detection technology with human analyst review inside a Security Operations Center (SOC). On every protected endpoint, COMNEXIA deploys SentinelOne EDR (Endpoint Detection and Response). SentinelOne's Singularity platform uses behavioral AI to flag process injection, lateral movement, and living-off-the-land attacks that signature-based antivirus misses. When SentinelOne raises an alert, COMNEXIA's SOC analysts triage it, confirm or dismiss the threat, and contain the affected endpoint by isolating it from the network, all without waiting for you to approve each action. That containment step is the operational difference between a single infected workstation and a network-wide encryption event.

Identity is now the primary attack surface. To complement endpoint coverage, COMNEXIA configures Microsoft Entra ID conditional access policies that block authentication attempts from outside approved locations or unmanaged devices, and enforces phishing-resistant MFA on every account. A credential stuffed from a data breach cannot be replayed from an overseas IP if the conditional access policy denies that session outright before it reaches your applications.

The Full MDR Stack COMNEXIA Delivers

• SentinelOne EDR on every endpoint: behavioral threat detection, automated quarantine, and a full forensic timeline of every process executed before and after an alert fires.
• 24/7 SOC monitoring and analyst triage: human review of every high-fidelity alert, with active response (isolation, credential reset initiation) rather than email-only notification.
• Microsoft Entra ID conditional access and MFA: named-location policies, device-compliance gates, and continuous access evaluation so stolen tokens cannot be replayed.
• Microsoft Defender for Cloud: workload protection for any Azure-hosted servers or virtual machines your Marietta business runs, with security posture scoring and misconfiguration alerts.
• Immutable, off-site backups following the 3-2-1 rule: three copies of data, two different media types, one copy air-gapped or immutable off-site, so ransomware that encrypts your production environment cannot touch your recovery point.
• Phishing-simulation security-awareness training: monthly simulated phishing campaigns sent to your staff, with click-through reporting and targeted remediation modules for repeat clickers.
• Patch management via NinjaOne RMM: automated patch deployment with defined maintenance windows, so vulnerabilities exploited in the wild are closed before attackers use them as entry points.
• Monthly MDR reporting: alert volume, confirmed threats, mean time to contain, and patch compliance percentage, delivered as a documented report you can present to ownership, auditors, or examiners.

Why Auto Dealerships in Marietta Need MDR Now

Cobb County is home to multiple franchised dealerships running dealer management systems (DMS) from CDK Global, Reynolds and Reynolds, or Dealertrack. Every one of those platforms stores nonpublic consumer financial information, which places the dealership under the FTC Safeguards Rule (16 CFR Part 314). The updated Safeguards Rule, fully effective since June 2023, requires dealerships to implement continuous monitoring or periodic penetration testing of their information systems. MDR with a 24/7 SOC satisfies the continuous-monitoring requirement and generates the documented incident-response logs the Rule demands. Without it, a dealership relying on a firewall and quarterly vulnerability scans is out of compliance and exposed, not just to breach risk but to FTC enforcement action.

The CDK Global outage in June 2024 demonstrated that third-party DMS connectivity is itself an attack vector. COMNEXIA's MDR posture treats DMS network segments as high-value targets: SentinelOne agents on workstations that communicate with CDK or Reynolds and Reynolds watch for unusual data exfiltration patterns, and Entra ID conditional access prevents DMS credentials from being used outside business hours or from unrecognized devices.

Serving Marietta and Cobb County from Roswell, GA

COMNEXIA's Roswell headquarters puts engineers close to Marietta clients. When remote SOC containment is not sufficient and a physical response or hands-on investigation is needed, proximity matters. Our onboarding process is documented and structured: asset discovery, SentinelOne agent deployment, Entra ID policy configuration, and baseline threat-hunt during the first 30 days, so you are not running unmonitored while we slowly ramp up coverage.

If your Marietta business, dealership group, or professional services firm wants to understand exactly what is running on your endpoints and identity infrastructure right now, the first step is a conversation. Call COMNEXIA at (877) 600-6550 to schedule a security assessment. We will review your current endpoint, identity, and backup posture and show you, concretely, where MDR coverage would have stopped the last category of attack that hit businesses like yours.