USB thumb drives are ubiquitous across society these days, and their use for storing cryptocurrency keys began almost as soon as currencies were ...
source https://www.google.com/url?rct=j&sa=t&url=https://www.ccn.com/op-ed-how-air-gap-technology-has-and-will-secure-our-cryptocurrency-assets/&ct=ga&cd=CAIyGmM2Nzk3ODA2ZWViNjVjODI6Y29tOmVuOlVT&usg=AFQjCNH_-sbUD8053Ac5g3uIks_gCquOgw
