July 30, 2014
Not all of Snowden’s disclosures regarding the NSA have to do with wiretapping government officials or tampering with our computers by intercepting global Internet and mobile phone communications.
It turns out that the National Security Agency has their own brains capable of generating an interesting list of their own patents, one of which is particularly striking.
One of the methods to avoid monitoring a mobile phone line is through the simple procedure of turning off the phone, removing the SIM card, inserting a different one belonging to another line and thus maintaining anonymity.
Well, at the NSA, aware of this method, they patented their own way of knowing when the SIM card of a mobile phone was exchanged, something that is very helpful in the usual procedure of many criminals of continuously changing lines to avoid being overheard. and detected.
via The NSA patented a system that detects when you change the SIM of your mobile | The Inquirer ES.
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