Upbit, one of South Korea’s largest crypto exchanges, reported a major loss after a Solana-network hot wallet was emptied early on November 27, 2025.

According to reports, about 54 billion Korean won — roughly $36–37 million — was taken in what the company called an “abnormal withdrawal” detected at 04:42 KST.

Upbit Suspends Solana Services

According to the exchange, deposits and withdrawals for assets on the Solana chain were halted immediately after the breach was found.

Company engineers moved remaining Solana holdings into cold storage to limit further access. Some tokens were later frozen on-chain while investigators traced transfers.

Reports have disclosed that about 12 billion won (around $8–9 million) in LAYER tokens has been frozen so far.

NEW: UPBIT DISCLOSES ~$37M HACK O

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