nanog mailing list archives
Re: Malicious SS7 activity and why SMS should never by used for 2FA
From: Mel Beckman <mel () beckman org>
Date: Tue, 20 Apr 2021 16:15:17 +0000
Shop with your feet if security is weak. I changed banks because of SMS 2FA. -mel via cell On Apr 20, 2021, at 9:06 AM, Mike <craigslist4md () gmail com> wrote: An unfortunate fact is that many companies don't support anything other than sending a token via email, SMS, or sometimes a voice call. I've seen several large banks, insurers, etc. who do this. It's maddening when you sign up for access to something and are restricted to these options. On Mon, Apr 19, 2021 at 11:49 AM William Herrin <bill () herrin us<mailto:bill () herrin us>> wrote: On Mon, Apr 19, 2021 at 5:54 AM Mark Tinka <mark@tinka.africa> wrote:
It's all about convenience, and how much they can get done without speaking to human.
Hi Mark, Convenience is the most important factor in any security scheme. The user nearly always has a choice, even if the choice is as rough-grained as "switch to a different company." If your process is too onerous (the user's notion of onerous) then it simply won't be used. An effective security scheme is the strongest which can be built within that boundary.
If a key fob can be sent to them - preferably for free - that would help.
Hint: carrying around a separate hardware fob for each important Internet-based service is a non-starter. Users might do it for their one or two most important services but yours isn't one of them. Regards, Bill Herrin -- William Herrin bill () herrin us<mailto:bill () herrin us> https://bill.herrin.us/
Current thread:
- Re: Malicious SS7 activity and why SMS should never by used for 2FA, (continued)
- 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 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 William Herrin (Apr 19)
- Re: Malicious SS7 activity and why SMS should never by used for 2FA John Adams (Apr 19)
- Re: Malicious SS7 activity and why SMS should never by used for 2FA John Levine (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 Mike (Apr 20)
- Re: Malicious SS7 activity and why SMS should never by used for 2FA Mel Beckman (Apr 20)
- 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 Mark Tinka (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 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 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 Tom Beecher (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 Mark Tinka (Apr 19)