Bitcoin SV, the Bitcoin Cash fork of the (in)famous Craig Wright and nChain, is back in the news. And not exactly for a good reason. gust 2nd, the security lights went on. There was a first attack — unsuccessful, but enough to raise eyebrows. And it didn’t take the attackers much longer to exact more damage for on August 3rd, Bitcoin SV experienced a 51% attack, compromising the integrity of its blockchain data.