#Fintech

Building a Spam/Fraud Detection System From Rules to ML in 2026

A comprehensive engineering guide to scaling fraud and abuse prevention. We analyze deterministic velocity heuristics, Redis sliding-window leaky buckets, real-time feature stores, XGBoost risk scoring models, and hybrid decision engines processing 100,000 requests per second.

75 Million Records for Sale: What the Revolut-Scale Breaches Have in Common

Sifting truth from cybercrime forum claims. Analyze the commonalities in massive fintech data breaches, credential aggregation risks, and credential stuffing vectors.

AI-Powered Financial Fraud Is Rising - Here's the Actual Attack Pattern

From generic phishing to AI-personalized vishing. A security analysis of multimodal BEC fraud, voice clone attacks, synthetic identity fraud, and defensive system architecture.

Building a Multi-Currency Pricing System That Doesn't Break

The e-commerce & SaaS multi-currency system design blueprint. Floating exchange rates, fixed localized tier pricing, integer cent precision, and FX rounding error prevention.

COBOL Modernization: What Cloud Architects Learn from 60 Years of Mainframe Engineering (2026)