A cryptocurrency user has reportedly lost $50 million in USDT following an address poisoning attack. The incident occurred when the victim, after successfully sending a small test transfer to the correct address, mistakenly sent a larger transfer to a lookalike address. This fraudulent address was copied from the user's transaction history, leading to the significant financial loss. The incident highlights the growing threat of address poisoning in the crypto space, where attackers create similar-looking addresses to deceive users.