Typical cryptocurrency hardware wallet is horribly insecure as far as typical requirements for HSM go, which is at least to me somewhat expected and ...
source https://www.google.com/url?rct=j&sa=t&url=https://news.ycombinator.com/item%3Fid%3D18773921&ct=ga&cd=CAIyGmM2Nzk3ODA2ZWViNjVjODI6Y29tOmVuOlVT&usg=AFQjCNGa1d1IgN6kI3f2-hxiRS0qDEBYpA
