All articles ← Knowledge Base Can I add multiple credit cards to my account? Can palm vein patterns be replicated? Do I have to register at every single store? Do I need a smartphone or any particular app to use Biyo Wallet? Does the merchant have any of my information? How accurate is palm vein pattern recognition? How do I register and link my credit cards to my palm? How does Biyo Wallet work? How fast is the Biyo Wallet checkout process? How much does Biyo Wallet cost? What are your processing fees? What if someone cuts off my hand? What is Biyo Wallet? When is the closed beta and how can I sign up? Where is my sensitive data stored? Who will process my credit cards?