#黑客攻击与网络安全事件 The Flow mainnet has experienced issues again, this time it was truly hacked. Upbit has directly suspended FLOW deposits and withdrawals, and the Korean exchange consortium has issued a risk warning, which sounds quite serious. However, the official response has been relatively decisive, abandoning a rollback in favor of an isolated recovery plan. This way, all legitimate user transaction records can be preserved, and 99.9% of accounts are unaffected. Although it sounds promising, phased recovery will take time. The first phase involves deploying Cadence environmentally, with EVM temporarily restricted, and further repairs are expected within 24-48 hours. The key question is when exchanges and cross-chain bridges will be able to resume operations, which is what everyone cares about most. Security incidents have become commonplace in the crypto world, so users should stay vigilant about their asset security and avoid storing large amounts on exchanges.