> Not as mobile: you need internet and a smartphone.
> I'm sometimes in zones without internet but my mum call me and ask me to give her some confirmation code I receive.
We're talking about multifactor authentication here. Where/how are you authenticating without internet access?
> Email is for old people
I guess that makes me old. Does that disqualify me from using multifactor authentication?
> Not as simple: stuff arrive in the spam folder. Some providers just reject your valid mail (my main email tld is exotic, it causes lots of troubles).
All of this happens to me with SMS much more often than it does with email.
> Plus email is almost as easy to spoof and intercept,
Agreed on spoofing, but that's not a problem for OTP authentication. Complete disagree on interception – I believe SMS is much easier to intercept, on average.
> I'm sometimes in zones without internet but my mum call me and ask me to give her some confirmation code I receive.
We're talking about multifactor authentication here. Where/how are you authenticating without internet access?
> Email is for old people
I guess that makes me old. Does that disqualify me from using multifactor authentication?
> Not as simple: stuff arrive in the spam folder. Some providers just reject your valid mail (my main email tld is exotic, it causes lots of troubles).
All of this happens to me with SMS much more often than it does with email.
> Plus email is almost as easy to spoof and intercept,
Agreed on spoofing, but that's not a problem for OTP authentication. Complete disagree on interception – I believe SMS is much easier to intercept, on average.