Two BCH miners launched a 51% attack on the Blockchain recently. They were trying to undo another miners’ exchange transaction. The BCH mining pools BTC.com and BTC.top launched the attack in order to stop the accessibility of the unknown miner from taking coins during the code change.

On the attack day, there was a bug having no connection with the upgrade prompting the split of system. It also prompted the miners to mine the empty blocks for a considerable amount of time.

A 51 percent attack usually consists of an entire group who can control the hash rate. It allows them to do certain things which they are not permitted to do. BTC.top controlled over half of the power at a certain point. Be that as it may, the BCH miners BTC.com and BTC.top collaborated reversing the block of exchange transactions to switch the squares of exchanges. The attack was for the betterment of the Bitcoin firm, though other BCH community disagrees.

The details of the attack are complex. The 51% attack has left worry for the proof-of-work cryptosystem as many blockchain networks will suffer from falling hash rates.