This may be a dumb question, but I'm at a loss. I don't want to install another app if I can help it (authy..). If I don't install or log into Authy, will SMS be my default authenticator? If not, how can I enable SMS authentication?
PSA: Be wary of phishing emails, I received this a couple hours ago and it looked legit, until I realized it doesn't use usernames at all, and the link links to a tracking website which logs your system information / ip address.
