On Tuesday evening, an attack was made on the Ethereum blockchain – unknown miners published their own chain of 550 blocks, but the vast majority of nodes discarded them as bad.
Ethereum developer Marius Van Der Wijden, the blocks issued by the hackers had incorrect confirmations. Most Ethereum nodes, after identifying an incorrect confirmation, rejected the alternate blocks. However, a small fraction of the nodes on which the Nethermind client is installed switched to a fake chain.
However, very soon the length of the main Ethereum chain exceeded that of the alternative one, and customers independently switched to the correct version of the blockchain. At the same time, the hackers were unable to take advantage of the situation in their favor.
“This is another example of how using different clients increases the resilience of Ethereum. The node operators didn’t even have to take any action, ”the developer noted.
September 14 became the day of massive attacks and errors in blockchains – the developers of the Ethereum scaling solution Arbitrum reported about the problems. In addition, the main network of the Solana cryptocurrency did not function for more than 15 hours.