Thanks for your message, and welcome to the Automatic community! At this time, we do not have two-factor authentication, but that is definitely something we may consider in the future. That said, we take security very seriously at Automatic and have top notch practices. I'd recommend reading this blog post from our founder which describes our efforts in more detail.
I hope this has helped answer your question, and I encourage you to let us know if there's any other way we can help. :)