Why do I need to authorize my device?
Coinbase uses Device Verification, a security feature that requires all devices (mobile and computer) and IP addresses to be authorized before accessing your account. This process should only need to be completed once for each device or location.
Authorizing a new device
To authorize a device or IP address, select I Authorize This Computer in the email we sent to finish the steps through Coinbase.com.
If you didn't receive the email, see Troubleshooting Coinbase emails. Once you’ve gone through those steps, simply sign in to your Coinbase account again and a new verification email will be automatically sent to you.
If you received the email, but can't find the verification link, see this article.
If the link is invalid, or you receive an error message that it has expired, it's likely caused by too many signin attempts without successfully confirming the device.
Re-authorizing a device
You may be prompted to verify a device that's been verified before. This usually happens if you clear the cache and cookies from your browser after having verified the device. It can also happen if you're using a different browser, using your browser's "private browsing" or "incognito" mode, or using a VPN service or the TOR network.
If this happens, you should be able to quickly verify the device again using the steps listed above. Remember to try only once and wait for the confirmation email to arrive.