<ul data-eligibleForWebStory="false">Coinbase executive suggests $8 billion Bitcoin transfer may be a hack, setting a potential record heist.Several dormant wallets with 10,000 BTC each moved the total stash of 80,009 BTC to new addresses, suspected to be compromised.Suspicion arises due to a test transaction on the Bitcoin Cash network before the full transfer, indicating potential foul play.Speculations point to the move being manual, possibly by an individual, surpassing previous crypto heists if confirmed as a theft.