Securing Firebase with SMS verification or Email help needed

[maxb]

I edited the title of this old post,

Securing Firebase with SMS verification or Email help needed

(I edited this cause it was a useless post, sorry for that). I really need some help with firebase as I’d like to secure the user data without requiring him to use the email. I’ ve successfully implemented a 2 steps verification process through SMS and I don’t want to use the email, is it possible to have a secure firebase without email login?

and also made this one

Firebase SMS security authentication without email possibile?

I’d like to have firebase authentication through SMS OTP, without using the email (slower and less userfriendly), is it possible in Thunk X?

but I had no luck at all