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 pressSlots confured with a Yubico OTP, OATH HOTP, or static password are activated by touching the YubiKey. The duration of touch determines which slot is used.