Since 2022, the group led by Dang Quoc Thang established Maxx Group to issue and promote the cryptocurrency projects 'Wingstep' and 'Game Naga Kingdom'. They deceived over 3,000 investors, appropriating 7.86 million USD (approximately 200 billion VND). These projects promised high profits and multi-level commissions but quickly lost liquidity, leaving investors empty-handed. On August 1, the Hanoi Police initiated legal proceedings and arrested the three main suspects: Dang Quoc Thang, Nguyen Thanh Loc, and Ngo Khac Trung for the crime of appropriating property through the internet.