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SIM hacks

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Revision as of 23:47, 27 July 2008 by Geohot (talk | contribs) (New page: These hacks all require a SIM card passthrough to be used. ==Exploit== This relies on the fact that the IMSI is read twice, once to validate the IMSI and once to connect to the network. S...)
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These hacks all require a SIM card passthrough to be used.

Exploit

This relies on the fact that the IMSI is read twice, once to validate the IMSI and once to connect to the network. So the SIM card spoofs the first IMSI read to trick the device into thinking it is operating on the AT&T network, or whatever network the device is locked to. The second time it allows the IMSI to be read properly from the sim card. That is the IMSI sent to the network.

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