Ethereum Classic has suffered its second 51% attack in a week after more than 4,000 blocks were reorganized Thursday morning.
Mining pool Ethermine’s parent entity Bitfly and crypto exchange Binance reported the reorganization, announcing all Ethereum Classic payouts, withdrawals and deposits had been suspended due to the attack. It’s unclear how much the attacker has made.
The reorganized transaction history is currently the longest chain on the network. However, the majority of Ethereum Classic miners – such as mining pool Ethermine – are continuing to mine on the shorter version of the network.
Source:
https://www.coindesk.com/ethereum-classic-suffers-second-51-attack-in-a-week