Cybersecurity Services in Brookhaven, GA

Cybersecurity Services for Small Business in Brookhaven, GA

Brookhaven businesses along Peachtree Road, Dresden Drive, and the Buford Highway corridor face the same threat actors targeting enterprises twice their size, but without enterprise security budgets or in-house security teams. COMNEXIA, headquartered in Roswell, GA and operating since 1991, delivers layered cybersecurity services sized for DeKalb County small businesses, including auto dealerships managing sensitive consumer financial data under active federal scrutiny.

Why Brookhaven Small Businesses Are a Target

Small businesses in Brookhaven are attractive targets precisely because most lack endpoint detection, segmented networks, or enforced multi-factor authentication. A single compromised credential in an unprotected Microsoft 365 tenant can expose customer records, financial data, and business email within minutes. Auto dealerships operating CDK Global, Reynolds and Reynolds, or Dealertrack dealer management systems carry an additional regulatory burden: the FTC Safeguards Rule (16 CFR 314.4), amended in 2023, requires dealerships to maintain a written information security program, designate a qualified individual to oversee it, conduct risk assessments, and implement specific technical controls including MFA, encryption, and access controls. Non-compliance carries FTC enforcement exposure.

What COMNEXIA Delivers: Named Controls, Not Generalities

COMNEXIA builds a documented security stack around each Brookhaven client's environment. Every engagement starts with a network and endpoint inventory, a gap analysis against your applicable standard (PCI DSS for card-processing retailers, FTC Safeguards for dealerships, HIPAA for medical practices), and a written remediation roadmap before any tool is deployed.

• Endpoint Detection and Response (EDR/MDR): COMNEXIA deploys SentinelOne EDR on every managed endpoint. SentinelOne's Singularity platform provides AI-driven behavioral detection, automated threat rollback, and forensic telemetry, capabilities that traditional antivirus cannot match. For Microsoft-centric environments, Microsoft Defender for Endpoint is configured and tuned as an alternative.
• Identity and Access Controls: Microsoft Entra ID conditional access policies are configured to block sign-ins from non-compliant devices, enforce MFA on every user account, and restrict access by geography or risk score. For dealership staff logging into CDK or Dealertrack portals, these policies directly satisfy FTC Safeguards Rule Section 314.4(c) access-control requirements.
• 24/7 SOC Monitoring: Alerts from endpoints, Microsoft 365, and network devices are fed into a Security Operations Center that monitors around the clock. When SentinelOne or Defender fires an alert at 2 a.m. on a Sunday, a human analyst reviews and responds. Brookhaven businesses are not waiting until Monday morning to learn they had a breach.
• Immutable, Off-Site Backups (3-2-1 Architecture): COMNEXIA configures three copies of critical data on two different media types, with one copy stored off-site and air-gapped. Immutable backup retention prevents ransomware from encrypting or deleting recovery points, which is a specific FTC Safeguards Rule and PCI DSS expectation for covered businesses.
• Phishing-Simulation and Security Awareness Training: Monthly simulated phishing campaigns are sent to your staff using real-world lure templates. Employees who click receive immediate inline training. Results are tracked over time, and trend reporting is included in your monthly management report so you can demonstrate a measurable improvement in human-layer risk.
• Patch Management via RMM: COMNEXIA uses NinjaOne for remote monitoring and patch deployment. OS and third-party application patches are tested and deployed on a defined schedule, and patch compliance rates appear in your monthly report. Unpatched endpoints are flagged before threat actors find them.
• Microsoft Defender for Cloud: For Brookhaven businesses running workloads in Azure, COMNEXIA activates Microsoft Defender for Cloud to provide continuous posture assessment, misconfiguration alerts, and threat protection across virtual machines, storage, and databases.

The Dealership Scenario: FTC Safeguards Rule in Practice

A Brookhaven-area auto dealership running Dealertrack for F&I and Reynolds and Reynolds for service operations touches non-public personal information on every deal jacket. The FTC Safeguards Rule requires that access to that data be limited to authorized users, that the network carrying it be monitored, and that a qualified individual report to ownership on the program at least annually. COMNEXIA has implemented this program for dealerships: Entra ID conditional access restricts DMS access to enrolled devices, SentinelOne monitors every F&I workstation, immutable backups protect deal records, and COMNEXIA produces the written annual report the rule requires. The qualified individual requirement can be fulfilled through COMNEXIA's virtual CISO service.

How the Engagement Works

COMNEXIA begins every new Brookhaven client relationship with a documented onboarding process: network discovery, asset inventory, credential audit, and a written risk assessment. Ongoing service is managed through a ticketing system so every request and incident has a record. Monthly reporting covers patch compliance, SOC alert summaries, phishing simulation results, and backup verification status. Nothing is "handled in the background" without documentation you can review.

Talk to COMNEXIA About Cybersecurity for Your Brookhaven Business

COMNEXIA has served Georgia businesses from its Roswell headquarters for 35 years. If your Brookhaven business lacks enforced MFA, monitored endpoints, or a written security program, you carry measurable risk today. Call (877) 600-6550 to schedule a no-obligation security assessment and learn exactly where your gaps are before an attacker finds them first.