At 13:06 on November 27, 2019, 342,000 ETH (approximately 58 billion won) were transferred from the Ethereum Hot Wallet to an unknown wallet.
UpBit says it will cover losses worth $51.3 million with corporate funds.
Unknown wallet address: 0xa09871AEadF4994Ca12f5c0b6056BBd1d343c029
https://upbit.com/service_center/notice?id=1085
UPD1: It is also rumored to have additionally stolen BTT worth more than $ 3.5 million and TRX worth more than $ 17 million. Perhaps this will be announced later. After the withdrawal of ETH to unknown wallets from the exchange, BTT with TRX moved to unknown wallets.
UPD2: Funds in the amount of 342,000 ETH were stolen from the Upbit wallet, funds began to be received again, in different amounts, it seems from the exchange team. A logical question arises. Why replenish an already compromised wallet? Hacked wallet balance already - 4.726 ETH
So the hacker are still doing their job to bypass the security of big exchanges. At first, it was binance and now Upbit.
This kind of happenings are kinda bad to crypto society especially to the investors as they don't know when their money will be stolen because even the big exchanges with high level of securities have been bypass by the hackers. It will be good if there will be counters that can be put against them aside from tight security.