The old authenticator was based on TOTP, with a few bits that were not commonly used, but within the spec. Mainly using 8 digits instead of the common 6. With a little work, one could extract the info needed, and plug it in to at least some standard TOTP authenticators (things like Authy, Google Authenticator, though not those two specifically).
So for years I have used AndOTP and more recently Aegis Authenticator for BNet auth, just like I use them for every other TOTP 2FA site/app. Wondering if the new setup is also TOTP based so will be able to re-register it and keep using my standard TOTP app. I hope so, as I have never had the Blizzard authenticator app, nor the blizzard mobile app on my phone and don’t plan to start now. Would hate to loose my 2fa…
Though, I suppose with D4 being terrible and OW2 circling the drain, my Blizzard account getting stolen is sounding less bad than in the past…