56 percent of bch controlled by 67 wallets the possibility of manipulation abounds. the most likely source of danger for BCH is however is extreme monopolisation and cartell behaviour by larger blocks .
meantime BTC hash rates set new highs which esentially means that it would be hard if not impossible for an entity to marshall the resources needed to succeed in a 51% attack https://bitcoinist.com/52-quintillion-per-second-bitcoin-hash-rate-breaks-dizzying-new-record/
