A crypto trader reportedly lost $50 million in USDT after falling victim to an address poisoning scam, a tactic where attackers send small transactions from lookalike wallet addresses to trick users into copying the wrong destination. The victim allegedly copied a fraudulent address from their transaction history, unknowingly sending funds to the scammer. The incident highlights ongoing risks in self-custody crypto transactions and underscores the importance of carefully verifying wallet addresses, using address whitelisting, and relying on secure transaction confirmation practices to avoid costly mistakes.