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Stolen SIM keys are powerful spy tools for US, UK agencies

One security firm founder said that the revelations could end up hurting manufacturers or carriers if they fail to take steps to correct any security weaknesses.


IT would be another powerful tool in the arsenal of US and British spy services: encryption keys for a large share of the SIM cards used for mobile phones.

A report by the investigative news website The Intercept, citing leaked documents from former National Security