Takunda P J Nhau — Blog http://localhost:3001/blog Notes on cybersecurity, secure engineering and AI. en Tue, 15 Sep 2026 17:03:35 GMT RBAC is harder than it looks http://localhost:3001/blog/rbac-is-harder-than-it-looks http://localhost:3001/blog/rbac-is-harder-than-it-looks Mon, 14 Sep 2026 16:55:12 GMT Role-based access control sounds simple until you have multi-tenant data, sensitive documents, and five modules that all have to agree. AppSec RBAC Multi-tenant Detecting scam SMS with a fine-tuned Polish transformer http://localhost:3001/blog/detecting-scam-sms-with-a-polish-transformer http://localhost:3001/blog/detecting-scam-sms-with-a-polish-transformer Mon, 14 Sep 2026 16:55:12 GMT Why a generic model was not enough for Polish-language fraud, and how the alert flow protects the people most often targeted. Machine Learning NLP Fraud