Private keys, not smart contracts, caused 40% of crypto's $16 billion hack losses. Here's whats being done. The industry is moving toward fixing the private key vulnerability issue, just not evenly, Wish Wu, co-founder and CEO of Pharos, said. - Roughly $16.69 billion has been lost to crypto hacks, with about 40% tied to stolen private keys rather than flaws in blockchains or smart contracts. - Se...