Most major SaaS apps support it, the major hardware provider I see recommended is yubikey although Google makes one as well. See also U2f. It's super easy to i

Most major SaaS apps support it, the major hardware provider I see recommended is yubikey although Google makes one as well. See also U2f. It's super easy to implement, try it out for yourself in Flask. https://www.yubico.com/solutions/fido-u2f/ https://www.yubico.com/solutions/fido-u2f/ https://cloud.google.com/titan-security-key/ https://cloud.google.com/titan-security-key/ https://github.com/herrjemand/flask-fido-u2f https://github.com/herrjemand/flask-fido-u2f