ARK Invest crypto research head Lorenzo Valente said the crypto industry has lost about $26.9 billion to hacks since 2017. According to Foresight News, Valente said on X that total on-chain revenue over the same period was about $47 billion. That amounts to roughly $0.57 in stolen assets for every $1 in on-chain revenue, he said, adding that security issues have become a key constraint on the industry’s development.