Portfolio — Barr Cyber LLC

Real Work.
Documented.

Every engagement documented with real metrics, real hardware, and real outcomes. No stock photos. No hypotheticals. This is what Barr Cyber actually does.

37°F
Temp drop — ROG G16 idle
3×
FPS gain — UE5 Epic settings
25
Attack vectors closed — hotel endpoint
95 hrs
MSP detection gap — zero contact
6
PCI DSS v4.0 reqs documented
$10.2M
US avg. breach cost — IBM 2025
Published Case Studies
01 // Gaming & Workstation
ASUS ROG Zephyrus G16 (2025)
Out-of-Box Performance Diagnostic
Brand-new RTX 5070 Ti laptop running at 130°F and lagging on a light game. Root cause: Armory Crate shipped non-functional from factory. Remediated in under 2 hours. Temps dropped 37°F. FPS tripled at Epic settings.
RTX 5070 Ti Armory Crate Thermal Fix GPU Optimization
April 21, 2026 →
02 // IT · Security · Compliance
Hospitality Endpoint Hardening
MSP Accountability · PCI DSS v4.0
Hotel GM workstation rebuilt from scratch after thermal failure caused by MSP oversight gap. 25 attack vectors closed. 6 PCI DSS v4.0 requirements documented with command-level evidence. Incumbent MSP monitoring formally found non-operational — 95 hours, zero contact.
PCI DSS v4.0 Endpoint Hardening MSP Accountability Tailscale VPN
April 2026 →
03 // Physical Security · IoT · Surveillance
Budget-Grade Asset Protection
Self-Storage Surveillance & GPS Stack
Four independent security layers deployed in under 24 hours from retail for under $300. GPS on independent LTE, dual auto-tracking cameras, dedicated cellular hotspot, chained UPS. Advanced tier: Raspberry Pi 5 on Debian 12, Frigate NVR, and Wazuh SIEM backhaul over WireGuard.
GPS Tracking IoT Surveillance Frigate NVR Wazuh SIEM
May 2026 →
04 // Forensic Recovery
Coming Soon
Forensic Workstation Rebuild
Intel RST VMD Recovery & RBAC Findings
Three workstation rebuild across Dell and HP hardware. Full forensic file recovery on corrupted OS with Intel RST VMD driver injection. RBAC security findings including terminated employee accounts and shared credentials.
Forensic Recovery Intel RST VMD RBAC Findings Windows 11
April 8–9, 2026 →
05 // Open Source & Nonprofit
Coming Soon
Foundation Lutheran Church
Digital Ministry Infrastructure Kit
Pro bono 4-phase digital infrastructure build for a mission congregation launching September 2026. Recording workflow, YouTube automation, sermon archive database, and open-source replication kit for WELS mission plants.
Open Source Supabase Next.js YouTube API
Coming Soon — 2026 →
06 // Network Security Architecture
Coming Soon
Enterprise Network Security Architecture & Pentest
Segmentation, Identity & Offensive Validation
End-to-end network architecture for a multi-entity operation — VLAN segmentation, firewall rule design, Entra ID / RBAC identity framework, and zero-trust lateral-movement containment. Designed by the same operator who then runs the pentest against it. If the architecture can be broken, the attack path is documented and closed.
Network Design Security Architecture VLAN Pentest
In Progress — 2026 →
In Progress — 2026 →