Upbit Revamps Security: Old Deposit Addresses Deleted
South Korea’s leading cryptocurrency exchange, Upbit, has taken a significant step in enhancing its security protocols. Following a recent wallet maintenance update, the platform has deleted all previous deposit addresses. Users are now required to generate new deposit addresses before initiating any transactions.
Why the Update? Addressing a Major Security Breach
This overhaul comes in the wake of a November 27, 2025 security breach that resulted in approximately 44.5 billion KRW (nearly $37 million) in lost funds. The attack primarily targeted Solana-based tokens, such as SOL, ORCA, and RAY, and exploited weaknesses in the exchange’s digital signature algorithm.
Action Required: Generate New Deposit Addresses
To ensure enhanced security, Upbit advises all users to immediately generate new deposit addresses via their accounts. Failure to update could result in significant delays in processing digital asset deposits.
When Will Services Resume?
The platform announced that deposits and withdrawals for 33 assets across 21 blockchain networks will start resuming gradually from December 5, 2025, at 5:00 PM KST. Top networks affected include Astar Network, Filecoin, Tezos, VeChain, and Polymesh. A phased approach will be implemented to ensure all wallet systems are inspected and secure.
The Importance of Secure Transactions
Upbit has urged users to delete existing deposit addresses linked to personal wallets or other exchanges. Older addresses are no longer functional and may lead to potential misuse.
Enhancing Crypto Security: Product Recommendation
For on-the-go crypto enthusiasts, keeping your digital assets secure is crucial. We recommend utilizing the Ledger Nano X, a trusted hardware wallet designed to protect your cryptocurrencies from cyber threats. Featuring advanced security measures, it’s a must-have for anyone engaging with digital assets.
Background: A History of Hacks
Upbit’s recent breach has drawn comparisons to its previous hack on November 27, 2019, where 342,000 Ethereum worth $41.5 million was stolen. Both incidents are suspected to have ties with North Korea’s Lazarus Group, a notorious cybercrime organization.
Looking Ahead
In tandem with addressing security vulnerabilities, Upbit is taking a proactive stance to safeguard users and restore confidence in its services. The platform remains committed to maintaining secure and seamless trading experiences for its users.
