On November 27, 2025, South Korean cryptocurrency exchange Upbit detected abnormal trades but delayed reporting the breach for six hours. During this time, over 1.04 billion Solana ecosystem tokens worth 445 billion won (~$33.6 million) were stolen. The incident, part of a rapid hack within 54 minutes, initially had higher loss estimates before being revised. BONK tokens constituted 99.1% of stolen token count, with Solana assets leading by value. Upbit reimbursed affected users from company funds and froze some stolen assets via blockchain tracking. Authorities, including the National Police Agency, continue to investigate.