Tag
Security and privacy, in practice
RFC 9116 answers the one question a stranger needs answered about your site: who do I tell about a vulnerability. What the file must contain, why the expiry date belongs in a test, and the routing trap that makes an SPA host serve it as HTML at 200.
Security and privacy, in practice
I put an MCP server on the public internet so an AI client could file todos onto my private kanban board. The interesting part wasn't the protocol — it was making the dangerous call unrepresentable.
Security and privacy, in practice
My kanban board had no authentication at all and handed its entire database to any caller. Putting it on focus.zakaria.lu meant a fourth host on the jar that was already running - plus a disclosure bug caught in review, and one cookie dot that 500'd every sign-in.
I pointed the new claude-security plugin at this very site. It spawned 82 agents, proposed 10 vulnerabilities, and then argued itself out of 9 of them. The one that survived was real — and it shipped to prod the same afternoon.
Shipping an AI feature into my own product · Part 3
I added job-description matching to the AI concierge on my career site. It shipped with no new bean, no new table, and no migration — because the leverage was in a seam I'd already built. A design note on shared streaming cores, streamable structured output, and treating a pasted JD as hostile.
Security and privacy, in practice
The cheapest security win on a single-container stack lives at the reverse proxy. Here's the four-header Traefik middleware I shipped, the two things I deliberately held back, and the report-only CSP rollout I'm lining up next.
Shipping an AI feature into my own product · Part 2
My site has an 'Ask Zakaria' AI box that answers untrusted recruiter input. So I spent an afternoon trying to break it — prompt leaks, tool-call injection, XSS, a cross-language jailbreak. Here's what held, and why the real defense isn't a clever prompt.
Security and privacy, in practice
Five ways to hand a secret to a Docker container, ranked by who can read it back out. The source is just plumbing - environment variable vs file is what actually decides your exposure.