According to CoinDesk, two BCH pools (BTC.com and BTC.top) recently launched a 51% attack on the BCH blockchain to reverse another miner's trade. This occurred when the BCH network hard forked on May 15th. BTC.com and BTC.top took this action to prevent unknown miners from taking advantage of a bug not related to the upgrade after the code was changed. Token. A developer named Kiarahpromises said on Twitter that "reorganization to recover unknown transactions, which is 51% of attacks, is probably the worst attack." However, some communities argue that this is the right approach, including BCH active supporter Jonathan Silverblood.