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[liberationtech] Receiving phone verification and 2-Step Verification codes through a 'number inside Iran'
aminsabeti at gmail.com
Fri Jan 16 09:44:24 PST 2015
Google has sent its codes via SMS with Iranian number since 6 months ago.
On 16 January 2015 at 17:39, Collin Anderson <collin at averysmallbird.com>
> On Fri, Jan 16, 2015 at 12:10 PM, elham gheytanchi <elhamucla at hotmail.com>
>> I think it means the codes are generated by the state agencies.
> They are not, the international companies would contract with an SMS
> gateway to send codes. That SMS gateway should be a more or less a dumb
> pipe that transmits whatever it is sent by the provider. It so happens that
> now the pipe is closer to the user but the source stays the same. The SMS
> gateway and telecommunications companies can certainly surveil or modify
> the content (the latter wouldn't be useful for 2FA), but it should not
> generate the codes.
> *Collin David Anderson*
> averysmallbird.com | @cda | Washington, D.C.
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