Paul MK — Writing https://paulappsec-site.paulmk2143.workers.dev/writing Software engineer and application security. I build production multi-tenant and payment systems, then attack them across tenant boundaries, webhooks and authorization paths. en I wrote four Semgrep rules and never ran them. Two were broken. https://paulappsec.hashnode.dev/semgrep-rules-i-never-ran https://paulappsec.hashnode.dev/semgrep-rules-i-never-ran Mon, 17 Aug 2026 00:00:00 GMT