When you get your Tangem cards, they do not have A non-public key. The key is generated after you create a wallet. Both of those Kudelski Security and Riscure have independently audited the wallet's firmware, confirming that there are no other backdoors inside the Tangem Wallet. Organising the Tangem Wallet https://manuelgcxlc.bloginder.com/33615342/tangem-wallet-things-to-know-before-you-buy