All that is required is the target person's cellphone number, a computer and some knowledge of how cellular networks work, said the report, which aimed to spotlight a security vulnerability.

报告称，所需的只是跟踪目标的手机号码，一台计算机和一些关于手机网络运行的知识。报告旨在曝光安全漏洞。

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All that is required is the target person's cellphone number, a computer and some knowledge of how cellular networks work, said the report, which aimed to spotlight a security vulnerability.

报告称，所需的只是跟踪目标的手机号码，一台计算机和一些关于手机网络运行的知识。报告旨在曝光安全漏洞。

youdao