otp slotBy default, Yubico OTP is programmed into slot 1 on every YubiKey. That's why the Personalization Tool says slot 1 is programmed. Slot 2 is long press (~3 second pressThe YubiKey's OTP application slots can be protected by a six-byte access code. Once a slot is confured with an access code, that slot cannot be reconfured in any way unless the correct