No, every SMS 2FA should be prohibited by regulatory certifications. The telcos had years to secure SMS. They did nothing. The plethora of well-secured commercial 2FA authentication tokens, many of them free, should be a mandatory replacement for 2FA in every security governance regime, such as PCI, financial account access, government web portals, etc.
-mel via cell On Apr 17, 2021, at 6:27 PM, Tim Jackson <jackson....@gmail.com> wrote: Every SMS 2FA should check the current carrier against the carrier when enrolled and unenroll SMS for 2FA when a number is ported out. BofA and a few others do this. -- Tim On Sat, Apr 17, 2021, 8:02 PM Eric Kuhnke <eric.kuh...@gmail.com<mailto:eric.kuh...@gmail.com>> wrote: https://lucky225.medium.com/its-time-to-stop-using-sms-for-anything-203c41361c80 https://krebsonsecurity.com/2021/03/can-we-stop-pretending-sms-is-secure-now/ Anecdotal: With the prior consent of the DID holders, I have successfully ported peoples' numbers using nothing more than a JPG scan of a signature that looks like an illegible 150 dpi black and white blob, pasted in an image editor on top of a generic looking 'phone bill'.
