On Tue, 21 Mar 2023 14:09:20 -0400 J C Nash <profjcnash [ at ] gmail [ dot ] com> wrote: > I'm wondering if the phone app (downloaded with wifi for example) > would work when NOT connected to a network, which is the usual state, > as I turn off wifi to save battery. It will. The 2FA app uses a protocol called TOTP and does not rely on data transmission during the auth process. It only relies on reasonably well-synchronized clocks. I made a video on this very topic: https://www.youtube.com/watch?v=reWRniZ9MjA&t=26s Regards, Dianne. To unsubscribe send a blank message to linux+unsubscribe [ at ] linux-ottawa [ dot ] org To get help send a blank message to linux+help [ at ] linux-ottawa [ dot ] org To visit the archives: https://lists.linux-ottawa.org