MCMartin ChristenTechnology & Advisory

Technology lab / Notes

Small questions.
Architectural consequences.

Concise technical drafts about how to evaluate a pattern. No environment diagrams, private endpoints or measured claims.

Network security

IoT segmentation and the discovery problem.

How can connected devices remain useful when the network gives them narrower permissions? Discovery and control can have different communication requirements, so the starting point is to distinguish them.

Identity & PKI

Certificates are an operational lifecycle.

What makes certificate-based trust dependable after initial setup? Issuance is only one stage. Renewal, revocation, trust distribution and recovery all affect the operating model.

AI security

Local AI still needs explicit boundaries.

What changes when a model runs locally? The execution location answers one question about information handling. It does not, by itself, define the authority of the surrounding application.