Overview

Amazon Seller Central supports USB security keys as an authentication method for Two-Step Verification (2SV), giving sellers a physical hardware option to protect their accounts. For sellers who prefer a tangible device over mobile authenticator apps, USB security keys offer a reliable and secure alternative that plugs directly into your computer.

Key Points / What Sellers Need to Know

• USB security keys are a 2SV option — In addition to authenticator apps and SMS codes, sellers can use a physical USB device to complete Two-Step Verification when logging into Seller Central.
• Keys must support TOTP-OATH — Any USB security key you purchase must support Time-based One-Time Password (TOTP) using the OATH standard to be compatible with Amazon's verification system.
• No access to your credentials — USB security keys and their associated authenticator programs do not have access to your Amazon password or account information, keeping your login details separate from the verification process.
• Works with authenticator software — The USB key connects to your computer and works alongside an authenticator program to generate the one-time codes required for login.
• Multiple key brands available — Several manufacturers produce compatible USB security keys, including well-known brands like YubiKey and others available through major retailers.

How USB Security Keys Work

A USB security key is a small physical device that you plug into an available USB port on your computer. When you attempt to log in to your Seller Central account, the key works in conjunction with an authenticator program installed on your computer to generate a unique, time-sensitive verification code. This code changes at regular intervals, meaning even if someone were to intercept a code, it would quickly expire and become useless. The process adds a second layer of security beyond your standard password, ensuring that only someone with both your credentials and physical possession of the key can access your account.

Choosing a Compatible Security Key

When shopping for a USB security key, the most important requirement is that the device supports TOTP-OATH (Time-based One-Time Password using the Open Authentication standard). This is the protocol Amazon uses for generating verification codes. Popular options include YubiKey and similar hardware tokens from reputable security companies. Before purchasing, verify the product specifications confirm TOTP-OATH support. These keys are widely available through Amazon's own marketplace and other electronics retailers. Prices typically range from affordable basic models to premium keys with additional features like NFC or biometric support.