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Greymantle Risk Advisory

Practical cybersecurity guidance from a CISSP with 25+ years as a security and systems engineer. Coverage spans cloud security, DevSecOps, compliance, threat intelligence, and the intersection of information security with emerging technology.

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I Gave My Screenshot Folder a Brain

·1463 words·7 mins
How I turned a years-deep, unsorted screenshot folder into a searchable library using Immich, Docker, and an MCP server an AI agent can query directly.

The Post You Didn't Know Was a Blueprint

·876 words·5 mins
Nobody oversharing, nobody breached. Just five harmless posts that add up to a home address, an empty-house window, a kid’s school, and a password reset answer. Here’s how the aggregation problem works, one Instagram scroll at a time, and what happens when a nation-state runs the same play at scale.

Giving Claude Code a Long-Term Memory With a Session-Summary Skill

·1053 words·5 mins
The model behind Claude Code has no memory of its own, and the saved transcript it relies on isn't built for skimming and doesn't stick around forever. Here's the skill I use to leave myself a searchable, readable trail so I can pick a project back up after months away.