How can I add stronger security for my Google Account?
We recommend Google 2-Step Verification to protect the Google Account associated with your corporate email. Each time you sign in to your Google Account, you'll need your password and a verification code. Get started
If your organization needs more control over your employees' Google Accounts that are used for work, consider Google Cloud Identity.
Which versions of TLS do the zero-touch enrollment APIs support?
The zero-touch enrollment APIs support TLS 1.0, TLS 1.1, and TLS 1.2.
You can prevent TLS downgrade attacks by disabling older versions of TLS in your app's network configuration.