Packet allows 2FA using either a smartphone app or SMS (text message); whatever your preference.
1. Log in to the customer portal at https://app.packet.net.
2. Click the “Settings” link in the lower left-hand corner.
3. Click the “Security” tab.
From there, you’ll be given instructions to either setup two-factor authentication using an app on your smartphone or using SMS, whatever your preference!
For more information visit: https://www.packet.net/help/kb/account-management-and-billing/how-do-i-enable-two-factor-authentication-/