PANews reported on November 28 that Dunamu CEO Oh Kyung-seok issued an apology letter stating that on the morning of November 27, an abnormal transfer occurred in Dunamu's Solana hot wallet. Preliminary confirmation indicates that a cyberattack due to a private key management vulnerability resulted in the theft of approximately 44.5 billion Korean won in assets, of which approximately 38.6 billion won were lost by members. 2.3 billion won has been recovered and frozen. Upbit has promised to fully compensate members for their losses with its own assets and has suspended all deposit and withdrawal services for security system overhaul.