Not as many as there used to be, though, as Coinbase recently stopped accepting PayPal as it attempts to create its own e-commerce platform. Cramer’s Blog. Provide bitcoin address via scanning your wallet’s QR code. But there are other risks — like losing it, or someone stealing it from your home, or just spilling water on it. Trezor , for example, is a hardcore wallet that offers 2-factor authentication AND a password manager, while the popular Ledger wallets require a PIN code for access.