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.