4 ms·
If you attach to a network successfully, it means the its secret key stored in the SIM card matches that of the network. Since your IMSI catcher is basically j
by noselasd 11y ago
If you attach to a network successfully, it means the its secret key stored in the SIM card matches that of the network.
Since your IMSI catcher is basically just a proxy between the mobile phone and the real network, you can therefore easily detect that the IMSI is who it says it is.