Cellular networks

2 articles

Total surveillance: hacking GSM networks over the air

Total surveillance: hacking GSM networks over the air

Ways that hackers can access a user’s calls.

What are virtual SIM cards and what do they do?

What are virtual SIM cards and what do they do?

Apple SIM, Google Project Fi and, for example, GigSky are all virtual SIM cards. OK, what’s so virtual about them?

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