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

William Herrin bill at
Sun Apr 18 18:28:15 UTC 2021

On Sun, Apr 18, 2021 at 8:31 AM Mel Beckman <mel at> wrote:
> You don’t even have to bother with social engineering [...]
> $16 off an anonymous prepaid credit card — and a few lies


What do you think social engineering is? It's a couple well placed
lies that convince someone to do the wrong thing.

Bill Herrin

William Herrin
bill at

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