Erick Cisneros
ContactResume
Directory
Overview
Experience
Investigations & Tooling
The Trophy Case
Education
Contact Me
Direct Inquiries
Back to Career History
Enterprise Security Operations

Log(N) Pacific

Cyber Security Support Analyst (Vulnerability Management & SecOps Intern)

02/2025 — 09/2026 • New York, NY
Vulnerability Remediation
100%
Critical Reduction (90% High, 76% Med)

Conducted vulnerability scans, provided detailed reports, and implemented PowerShell remediations for the server team.

Detection Engineering
EDR & SIEM
Threat Hunting & KQL

Performed threat hunting with EDR detecting IoCs from brute force, exfiltration, and ransomware, and built custom detection rules in MDE.

Attack Surface Reduction
100%
Brute Force Incident Drop

Reduced brute force incidents by 100% by implementing inbound NSG/Firewall rules to limit Internet exposure.

Enterprise Responsibilities & Security Operations

Vulnerability Management & Hardening

  • Conducted regular vulnerability scan cycles using Tenable.io, prioritizing remediation by CVSS score and business impact.
  • Engineered and deployed PowerShell automation scripts to remediate configuration vulnerabilities across Windows Server and Linux hosts.
  • Audited and enforced DISA STIG baselines to maintain strict compliance standards across enterprise assets.

Security Operations & Incident Triage

  • Investigated and mitigated tier-1 and tier-2 incidents within Microsoft Sentinel SIEM and Defender for Endpoint.
  • Constructed custom Microsoft Sentinel workbooks and KQL rule detections for brute-force attacks and credential abuse.
  • Reduced inbound attack surface by 100% through rigorous Network Security Group (NSG) and firewall ACL re-architecting.
Microsoft SentinelDefender for Endpoint (MDE)Tenable.ioKQLAzure Active Directory (Entra ID)DISA STIG HardeningPowerShell AutomationFirewall & NSG Configuration
← View All Work ExperienceDownload Full Resume (PDF)
© 2026 Erick Cisneros Ruballos
LinkedIn•GitHub•Direct Email