Stella Meksin-Ruzinov, B.S.

• Lead cybersecurity and IT operations for a multi-provider dental practice, ensuring HIPAA compliance and strong data protection standards.
• Configure and manage Active Directory, implementing MFA, GPOs, and access controls to enforce least-privilege policies.
• Develop and maintain cybersecurity policies, including Access Control, Data Retention, and Incident Response documentation aligned with NIST 800-53A standards.
• Manage Cisco ASA Firewall, Snort IDS, Windows Defender ATP, and Sophos Antivirus to maintain secure network and endpoint protection.
• Conduct regular Nessus vulnerability scans, addressing configuration weaknesses and strengthening endpoint security.

• Directed SOC operations using Splunk Enterprise SIEM and JumpCloud Directory Insights to detect and mitigate potential security threats.
• Developed and fine-tuned alerting rules for RDP brute force attempts, PowerShell anomalies, and DNS tunneling to enhance visibility and response speed.
• Investigated phishing campaigns and malware indicators using PhishTool, VirusTotal, and sandbox environments to validate and contain threats.
• Authored incident response reports under the NIST 800-53A framework to support compliance validation, coordinate remediation, and ensure consistent post-incident follow-up.

• Performed organizational security assessments mapped to ISO/IEC 27001 and NIST Cybersecurity Framework controls.
• Authored and implemented Password and Patch Management policies addressing critical vulnerabilities in enterprise systems.

• Supported daily IT operations, managed desktop systems, printers, and shared drives to minimize downtime and ensure efficient investigations.
• Maintained and organized digital case files, ensuring secure storage, controlled access, and regular backup procedures.
• Assisted investigators with technology setup, secure communications, and encrypted data transfers for sensitive information handling.
• Monitored antivirus updates, firewall configurations, and software licensing to maintain compliance and system reliability.
• Collaborated with vendors to troubleshoot hardware issues, coordinate upgrades, and enhance operational performance.

• Administered Windows Server 2003/2008 environments, managing DNS, DHCP, and user provisioning to maintain network integrity.
• Migrated patient records to a NAS with RAID configuration, implementing file permissions and data recovery validation.
• Implemented BitLocker encryption across all endpoints and maintained key escrow management in Active Directory.

• Delivered end-user technical support across Windows-based systems, ensuring consistent functionality of Open Dental and imaging applications.
• Installed and configured firewalls and antivirus software to maintain secure and stable computing environments.
• Oversaw data backup operations and performed recovery tests to ensure business continuity.
• Trained staff on data protection procedures, HIPAA compliance, and best practices for password security.

Note: This role appears twice in the PDF; included once here to avoid duplication.