Evolution of Chinese-Language Guarantee Telegram Marketplaces

This Insikt Group report analyzes Dabai Guarantee, a Telegram-based Chinese-language guarantee marketplace that facilitates large-scale, coordinated retail and financial fraud (including NFC/ghost-tapping, ATM cashouts, and resale of stolen goods) across multiple countries. The report uses Public Group 301 as a case study to detail organizational roles (bosses, sweeping teams, goods-receiving/inspection teams), bot-driven search and routing mechanisms, customer service/escrow functions, specific operational TTPs, and observable indicators (Telegram handles and a TRON USDT wallet) demonstrating active exploitation and significant cross-border criminal coordination.