Ng before voicemail — or even answering machines — and back when phones could be carried in your pocket, there was no telling who called while you were away from home.

在语音邮件、录音电话以及手机发明之前，当你不在家的时候，没人告诉你谁来过电话。

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But home wireless networks may not be all that safe either, because of free and widely available Wi-Fi cracking programs like Gerix WiFi Cracker, Aircrack-ng and Wifite.

但是，一些类似于Gerix WiFi Cracker, Aircrack-ng and Wifite的广泛使用的免费破解程序使得家中的无线网也并非固若金汤。

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