Btw Larry, even with EFANI I would still recommend having no phone number anywhere in online accounts(unless literally can't use the app without, which is rare). Most have a private key sort of setup can use for backup + authenticator app for 2FA. Just my opinion. No phone number makes sim swap actually impossible.
Discussion
Yes I follow that, except in Twitter and I think I had email as the 2Fa
Email is not bad, but only if the corresponding google account(or whatever the email account is) is itself totally locked down and secure with no openings. Which can be pretty tricky, but doable. There is a lot to completely securing online accounts on the whole. If one lil thing is missed, it can be all for nothing basically. Can be overwhelming, but just trying to provide some helpful info wherever I can.
Thank you!