Bitcoin Cash experienced a 2-block reorganization following its scheduled hard fork on May 15

Following the scheduled hard fork on May 15, Bitcoin Cash experienced a series of seemingly related problems, which ultimately resulted in a 2-block reorganization. Shortly after the hard fork, an attacker exploited a bug in Bitcoin ABC (which could have been exploited even before the hard fork) by sending transactions that fulfilled the requirements of a valid transaction but failed the consensus checks. This resulted in miners producing blocks that were nearly empty.

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