South Korean crypto exchange Bithumb has filed for a provisional attachment, a court-approved measure that freezes assets ahead of a civil lawsuit, to recover 7 Bitcoin that was mistakenly distributed during a promotional event in February. The exchange reversed the transactions within minutes, but a portion of the funds had already been moved. The remaining 0.3% or 1,788 BTC, that was already sold, was covered using company reserves. However, some recipients argue they are not responsible for returning the funds due to the exchange's mistake. Under South Korean law, mistakenly received assets are classified as unjust enrichment and must be returned.