Cybersecurity Services in Brookhaven, Georgia

Cybersecurity Services for Brookhaven, GA Businesses

Brookhaven businesses operating along Peachtree Road, Dresden Drive, and the Buford Highway corridor face the same threat actors targeting every metro Atlanta organization, but often with fewer dedicated IT security staff to respond. COMNEXIA has delivered managed cybersecurity from its Roswell, GA headquarters since 1991, and our 35 years of experience includes protecting auto dealerships, professional services firms, and multi-site businesses throughout DeKalb County. We do not resell generic antivirus and call it a security program. We build a layered, documented security stack around tools you can name and controls you can audit.

The Specific Threat Landscape Brookhaven Businesses Face

DeKalb County's proximity to Hartsfield-Jackson flight paths and its concentration of healthcare-adjacent businesses on Ashford Dunwoody Road makes it a realistic target for ransomware groups that specifically scan for unpatched Windows endpoints and misconfigured Microsoft 365 tenants. Business email compromise, credential stuffing against Microsoft Entra ID (formerly Azure AD), and phishing campaigns impersonating CDK Global or Reynolds and Reynolds dealer portals are active and documented attack vectors in the Atlanta metro. If your Brookhaven business relies on a dealer management system such as CDK Global, Reynolds and Reynolds, or Dealertrack, a single compromised credential can expose customer nonpublic personal information and trigger FTC Safeguards Rule (16 CFR 314.4) violations that carry real regulatory consequences.

What COMNEXIA Delivers: Named Controls, Not Promises

Every COMNEXIA cybersecurity engagement starts with a documented baseline assessment of your endpoints, identity configuration, and backup posture before we change anything. From that baseline we build and manage the following controls for Brookhaven clients:

• Endpoint Detection and Response (EDR/MDR): We deploy SentinelOne EDR or Microsoft Defender for Endpoint depending on your existing licensing. Both provide behavioral AI detection that catches fileless malware and living-off-the-land attacks that signature antivirus misses. Alerts feed into our 24/7 SOC for triage and containment, not just logging.
• Identity and Access Control: We configure Microsoft Entra ID conditional access policies that enforce MFA on every sign-in, block legacy authentication protocols, and apply location-based risk scoring. For dealerships, we scope these policies to cover Dealertrack and Reynolds and Reynolds portal access alongside Microsoft 365.
• Cloud Security Posture: For clients running workloads in Azure, we activate Microsoft Defender for Cloud and remediate the specific misconfigurations (open storage blobs, disabled diagnostic logging, missing just-in-time VM access) that scored findings most commonly produce.
• Immutable, Off-Site Backups (3-2-1): We maintain three copies of your data on two different media types, with one copy in an off-site cloud repository that is air-gapped from your production environment. Backup jobs are tested on a documented schedule so recovery is a verified process, not an assumption.
• Patch Management via RMM: Using NinjaOne or ConnectWise Automate, we enforce patching across Windows endpoints and third-party applications (browsers, Adobe, Java) on a defined cadence. Unpatched endpoints are one of the top ransomware entry points in small and mid-size business environments.
• Phishing-Simulation Security Awareness Training: We run recurring simulated phishing campaigns against your staff and assign targeted training modules based on who clicks. This is a specific FTC Safeguards Rule requirement (Section 314.4(e)) for dealerships and a broadly recognized best practice for any organization handling sensitive customer data.
• 24/7 SOC Monitoring and Incident Response: Our security operations center monitors alerts from your EDR and identity platform around the clock. When a threat is confirmed, we contain it at the endpoint or identity layer before it moves laterally, and we provide a written incident report documenting the timeline, scope, and remediation steps taken.

Auto Dealerships in Brookhaven and DeKalb County: FTC Safeguards Compliance

The FTC Safeguards Rule (16 CFR Part 314), updated and enforced since June 2023, requires auto dealerships to maintain a written information security program, designate a qualified individual to oversee it, conduct risk assessments, and implement specific technical safeguards including encryption, MFA, and access controls. COMNEXIA has implemented these programs for dealerships running CDK Global and Reynolds and Reynolds DMS platforms. We produce the written risk assessment, configure the MFA and conditional access policies, and deliver monthly reporting that your qualified individual can present to ownership or a board. If your Brookhaven-area dealership has not completed a Safeguards Rule gap assessment, that is a documented compliance exposure today.

Monthly Reporting and Transparent Accountability

Every COMNEXIA cybersecurity client receives a monthly report covering patch compliance rates by endpoint, EDR alert volume and resolution status, backup job success or failure logs, and phishing simulation click rates by department. These are real numbers from your environment, not a vendor dashboard screenshot. Reporting is part of the service agreement, not an upsell.

Talk to COMNEXIA About Cybersecurity in Brookhaven

If your Brookhaven business is running Microsoft 365 without conditional access policies, missing EDR coverage on even one endpoint, or has never tested a backup restore, those are concrete, fixable gaps. COMNEXIA has addressed exactly these situations for DeKalb County businesses for over three decades. Call us at (877) 600-6550 to schedule a no-obligation security assessment and find out where your current posture stands before a threat actor does.