Joshua Yawn
Cybersecurity Support Technician @Log N Pacific
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WORK HISTORY
Cybersecurity Support Technician @Log N Pacific
Security Operations:Monitored and analyzed 300+ daily security events in Microsoft Sentinel (SIEM) and Defender for Endpoint (EDR), detecting IoCs such as brute force attempts, data exfiltration, and ransomware activity.Performed triage on an average of 50+ alerts per shift, escalating ~20% as high-severity incidents and assisting with containment through automated host isolation and remediation playbooks.Developed 10+ custom detection rules in Microsoft Defender for Endpoint, improving visibility into suspicious processes and reducing false positives by 30%.Reduced brute force incidents by 96% by implementing hardened firewall and NSG rules, significantly limiting external attack surface exposure.Built and optimized Sentinel dashboards and 25+ KQL queries to track logon failures, lateral movement attempts, and malicious network traffic enriched with threat intelligence feeds, reducing investigation time by 40%.Collaborated with SOC team members to investigate hundreds of endpoint, firewall, and IDS logs weekly, ensuring 100% documentation accuracy and timely escalation of incidents. Vulnerability Management:Conducted weekly vulnerability scans on 800+ Windows/Linux servers using Tenable, providing detailed reports and implementing PowerShell-based remediations that achieved a 100% reduction in critical, 90% in high, and 76% in medium vulnerabilities for the server team.Performed vulnerability assessments and risk-based prioritization across diverse environments, reducing patch backlog by 40% while maintaining operational uptime.Executed secure configurations and compliance audits (DISA STIG) with Tenable, ensuring alignment with DoD and industry standards.Automated remediation workflows and STIG implementations using PowerShell, reducing manual patching efforts by 60% and accelerating time-to-remediation.Developed and tested custom Python/Bash scripts to streamline vulnerability scanning, log analysis, and reporting, cutting scan review time by 30%.
EDUCATION
Western Governors University
Bachelor's degree
Hillsborough Community College
Associate of Arts
ABOUT JOSHUA YAWN
Cybersecurity Analyst | Incident Responder | Blue Team Operations | Threat…
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