Malicious SS7 activity and why SMS should never by used for 2FA

Mark Tinka mark at
Mon Apr 19 18:34:16 UTC 2021

On 4/19/21 17:48, William Herrin wrote:

> Convenience is the most important factor in any security scheme.

But often not at the top of the implementation priority list.

> 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.

You make my point for me.


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