nanog mailing list archives
Re: Malicious SS7 activity and why SMS should never by used for 2FA
From: Mel Beckman <mel () beckman org>
Date: Sun, 18 Apr 2021 03:18:34 +0000
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.tim () 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.kuhnke () gmail com<mailto:eric.kuhnke () 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'.
Current thread:
- Malicious SS7 activity and why SMS should never by used for 2FA Eric Kuhnke (Apr 17)
- Re: Malicious SS7 activity and why SMS should never by used for 2FA Tim Jackson (Apr 17)
- Re: Malicious SS7 activity and why SMS should never by used for 2FA Mel Beckman (Apr 17)
- Re: Malicious SS7 activity and why SMS should never by used for 2FA Dan Hollis (Apr 17)
- Re: Malicious SS7 activity and why SMS should never by used for 2FA Mark Tinka (Apr 18)
- Re: Malicious SS7 activity and why SMS should never by used for 2FA Mel Beckman (Apr 18)
- Re: Malicious SS7 activity and why SMS should never by used for 2FA Mark Tinka (Apr 18)
- Re: Malicious SS7 activity and why SMS should never by used for 2FA John Adams (Apr 18)
- Re: Malicious SS7 activity and why SMS should never by used for 2FA William Herrin (Apr 18)
- Re: Malicious SS7 activity and why SMS should never by used for 2FA John Adams (Apr 18)
- Re: Malicious SS7 activity and why SMS should never by used for 2FA Mel Beckman (Apr 17)
- Re: Malicious SS7 activity and why SMS should never by used for 2FA Tom Beecher (Apr 19)
- Re: Malicious SS7 activity and why SMS should never by used for 2FA Mel Beckman (Apr 19)
- Re: Malicious SS7 activity and why SMS should never by used for 2FA Mark Tinka (Apr 19)
- Re: Malicious SS7 activity and why SMS should never by used for 2FA Tim Jackson (Apr 17)