BLOG / SYS-HUMAN-001Public
The Human Behind the Keyboard
Jeff Kimbrow on independent security research, professional frustration, relentless curiosity, and remembering to close the laptop.
Read personal essayBLOGS / PUBLIC SYSTEMS
Models become legible when they operate.
These systems are implementation surfaces, field notes, and demonstrations connected to the research practice.
PUBLISHED_BLOGS
Published blogs
Each blog carries a stable identifier, state, purpose, and direct destination.
BLOG / SYS-OBS-001Public
From Fault to Paper
An evidence-bounded case study of state observability across mobile and automotive systems—and the difference between documenting a fault and establishing its cause.
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Im-mutable State
A controlled restore comparison: the modified SystemVolume cache is associated with failure at 0x6B4, while the preserved known-good cache completes with status 0.
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PASTDOOR
After BlastDoor: State Transformation Across Trusted System Services. Follow accepted state as trusted system consumers reconstruct and act on it.
Read blogSYS-TRUSTING-001Public
More Trusting Than Boundary-ing
How legitimate systems amplify trust across shared infrastructure without requiring a boundary to fail.
Read blogSYS-RDX86-001Public
Make It x86
An engineering perspective on improving responsible disclosure through better communication, continuity, and intent.
Read blogSYS-PSI-001Public
PSI
Pressure Sensitive Investigations: an engineering perspective on confidentiality, scope, communication pressure, and investigative observability.
Read blogSYS-UNLOCK-001Public
The Frame Before Unlock
A deterministic optical stress test, preserved frame sequence, and the question raised by pre-unlock imagery.
Read blogSYS-RTM-001Public
Red Teaming the Mind
A system for examining cognition through adversarial methods.
Open systemSYS-RTX-001Public
Red Team Tabletops
A tabletop learning module for reasoning through adversarial situations.
Open moduleSYS-DSR-001Public
DSAR
A focused surface for Data Subject Access Request research.
Open systemSYS-CGV-001Public
Cognitive Governance
Notes on quiet governance failure and its visible consequences.
Open systemSYS-SRP-001Public
Security Research Programs
Analysis of participation in coordinated security research programs.
Open analysisSYS-BSOD-001Public
BSOD — Notes from Broken Systems
Field notes and technical essays examining failures, unexpected behavior, debugging paths, and what broken systems reveal about their underlying boundaries and assumptions.
Open BSOD notesCOMPLETED_RESEARCH_ARCPublic
DIFFRACTION Research Retrospective
A completed record of the first DIFFRACTION research arc, consolidating its development, findings, and open questions.
Read retrospectiveSYS-SIG-001Public
Signals
Observations on signal, interpretation, and displaced information.
Open Signals