Hello Itch Team,
I hope that you consider my suggestion, since Itch.io is a great store for indie developers alike.
I don't have a smartphone and would like to implement two-factor authentication on my account. I already use SMS two-factor authentication for some important accounts and I'm sad to see that Itch don't have this option here as well.
I receive a SMS when need to login on the said sites I mentioned and also receive a notification on my email when someone tries to login at it with their IP address, hardware and location information, I don't understand why you can't implement this here.
Please, take a look into this, since I believe it will be a great addition to the store's security.