Mr Nohl added the motivation for carrying out the research was to create awareness around the problem and perhaps prompt operators to improve security.

诺尔先生说他们研究的目的是提高对此问题的全面认识并促使运营商提高安全措施。

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Mr Nohl told BBC News, "we used the cheap Motorola telephones because a description of their firmware leaked to the Internet." This allowed hackers to adapt it to reveal all data broadcast.

诺尔先生对英国广播公司说“我们使用了廉价的摩托罗拉手机因为他们的软件已经泄漏到了互联网上”这就使得黑客可以用它获得传播的所有信息。

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In his talk, Nohl played back a recorded snippet of audio he had captured and decrypted from his own mobile phone.

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"I don't believe that the opposing side should be able to impose their views on others, " said Nohl Rosen, a Phoenix small business owner.

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