“The best means we have for keeping our keys safe is called “zero knowledge,” a method that ensures that any data you try to store externally – say, for instance, on a company’s cloud platform – is encrypted by an algorithm running on your device before it is uploaded, and the key is never shared. In the zero knowledge scheme, the keys are in the users’ hands – and only in the users’ hands. No company, no agency, no enemy can touch them.”
