For example, Bitcoin's code was tested so thoroughly by the community and developers that they found a flaw in OpenSSL, which is used in 30% or so of websites. In the case of things like Ethereum smart contracts, all it takes is 1 bug to delete millions of dollars. So you better hope that code is transparent and thoroughly audited. 1 boyber 2018-03-25 Its like amber round a fly, layer by layer it builds up.