Popular Mechanics (South Africa) - - News -

Bit­coin mil­lion­aires don’t rely on a cou­ple of pass­words to ac­cess their funds. Many high rollers use a dig­i­tal wal­let, a R1 200 piece of hard­ware that you plug into a com­puter when you want to spend or make ex­changes. Th­ese de­vices gen­er­ate a tic-tac-toe grid of nine ran­dom­ized num­bers that you type into the com­puter to ver­ify your iden­tity. The most pop­u­lar model is from a com­pany called Tre­zor and it’s de­lib­er­ately low-tech. No Wi-fi, no Blue­tooth, no way to get at your bit­coin un­less it’s re­ally you. In­vestors we asked about them who didn’t use one all said the same: “I don’t, but I should.”

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