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How to Buy Bitcoin using a Bitcoin ATMStep by step. Open My Ledger in Ledger Live. Connect and unlock your Ledger device. If asked, allow My Ledger to access your device. Secure your accounts / personal accounts with the most trusted hardware wallet. With FIDO Universal 2nd Factor (U2F) app, you can enhance the security of your. zoomiestoken.org � how-to-use-a-yubikey-to-secure-your-bitcoin-wallet.