TLDR
Several exchanges temporarily halted token transfers for specific assets this week due to incidents or maintenance.
- Upbit and Bithumb paused FLOW deposits and withdrawals after a Flow security incident, with a DAXA risk warning issued here.
- KuCoin paused Solana network deposits and withdrawals for a wallet infrastructure upgrade announcement.
- Binance briefly paused ETH deposits and withdrawals for scheduled wallet work on Dec 25, confirmed in an update on X.
Deep Dive
1. Korea FLOW Pause
South Koreas largest venues reacted to the Flow (FLOW) incident with transfer halts and a caution label.
- Upbit and Bithumb suspended FLOW deposits and withdrawals, and the exchange alliance DAXA issued a transaction risk warning for FLOW after a network security incident was disclosed report.
- The Flow team requested freezes from stablecoin issuers and exchanges while working on remediation; some venues temporarily suspended related transactions during recovery coverage.
FLOW transfers may be gated until venues and the network finalize remediation. Confirm status on your exchanges notice page before moving funds.
2. KuCoin Solana Maintenance
KuCoin paused Solana network transfers as part of a wallet security upgrade.
- KuCoin announced a temporary suspension of deposits and withdrawals for the Solana network tied to a wallet infrastructure upgrade; trading remained unaffected during the window announcement.
- These planned pauses are operational and do not imply a token issue; resumption typically follows completion of upgrade checks announcement above.
Expect short, scheduled downtime on deposits and withdrawals around maintenance windows; plan transfers outside posted upgrade times.
3. Binance ETH Wallet Work
Binance executed a short ETH network transfer pause for maintenance.
- Binance said ETH deposits and withdrawals would pause for about one hour on Dec 25 for wallet work, with trading left open and services resuming once the network was stable X update.
- Similar transfer pauses can occur around hard forks; Upbit also flagged an upcoming ETH deposit and withdrawal suspension for a fork-related upgrade X update.
Short ETH transfer pauses around upgrades are routine. If timing is critical, check venue notices before initiating a move.
Conclusion
The recent transfer halts were targeted and temporary: Korean exchanges paused FLOW due to a network incident, while KuCoin and Binance scheduled brief network-specific maintenance. The practical takeaway is simple: check the latest exchange notices before moving assets, especially during upgrades or when incident advisories are active.
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