Attack of 51% in Ethereum Classic network

The team of one of the largest Ethereum mining pools, EtherChain, published information about what happened on the Ethereum Classic (ETC) networkreorganization indicating a possible attack of 51%. The cryptocurrency users were advised to pause deposits and withdrawals in Ethereum Classic until the availability of the property was determined.

Today, the ETC network sent a reorganizationthe last 3693 blocks mined, starting from block 10904146. This is a rule to stop the synchronization of all nodes. Apparently, this is caused by an atomic rate of 51%, so all birges are advised to immediately stop the input and output of media.

Today the #ETC chain experienced a chain reorg of3693 blocks at block 10904146. This caused all state pruned nodes to stop syncing. It is likely caused by a 51% attack and all exchanges are advised to halt deposits & withdrawals immediately and investigate all recent tx. pic.twitter.com/lUNtifaBWT

— Bitfly (@etherchain_org) August 1, 2020

After a message to EtherChain, the founder of the ETC development team, James Bu, wrote on Twitter that the team of the project is engaged in investigating the incident.

Hi everybody, @etc_core is working on it now,please kindly wait for the response from the core team. No worries, it will be solved. Exchanges need to pause deposits and withdrawals now. https://t.co/5CrrLNDHax

— James Wo (@realjameswo) August 1, 2020

At the moment of writing the article, Yaz Khouru from ETCCooperative.org expressed the opinion that this event could have come about because of the fact that the color of the mainman could deprive the mind of the idea from the point of view:

«It is possible that the miner involved lost access to the internet during mining, resulting in a 12-hour mining period and approximately 3,000 blocks being inserted.»

In the first 2000 blocks there was 1 miner and only 5 transactions. Perhaps this was a predetermined attack, since the double charges were not fixed.

According to the words of the expert, transactions that were notrecovered, will be transferred to the memory again during the repeated reorganization. The network will cease to exist in its current form and will include 3000 inserted blocks.

</p></p>