Massachusetts authorities in the United States have filed a civil forfeiture lawsuit to recover over $200,000 in USDT, which have been identified as proceeds from a "pig slaughter" cryptocurrency scam. The victim met a scammer on Tinder and was led to a fraudulent trading platform, losing approximately $504,353. Although some of the funds have been traced and recovered, experts point out that due to the rapid movement of funds on the blockchain and the lack of effective international law enforcement cooperation, recovering these funds remains very challenging.