Tracking Down Bulgarian Marketplace Scammers: A Programmer's Undercover Investigation

A programmer, while selling an item on an online marketplace, fell victim to a sophisticated scam involving a phishing website and fake courier information. Driven by personal reasons, he launched an investigation, uncovering a vast Bulgarian-based scam operation utilizing a custom Node.js system and Telegram bots. The investigation revealed the group's organizational structure, members' identities, and operational methods, implicating thousands across multiple European countries. Despite reporting, such scams are difficult to eradicate.