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ScA 60S 111028 App Turns iPhone into spiPhone(App让爱疯手机一秒变间谍疯，有么有）
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SSS1分钟科学新闻，自己翻着玩
Used to be if spies wanted to eavesdrop, they planted a bug. These days, it's much easier. Because we all carry potential bugs in our pockets—smartphones. One team of researchers used an iPhone to track typing on a nearby computer keyboard with up to 80 percent accuracy. They presented the findings at a computer security conference in Chicago. 曾几何时，间谍得费事安装上一个窃听器才能窃听。现在，这事办起来就容易多了。也许，你的口袋你就装着窃听器呢-智能手机，有没有？最近在芝加哥举办的电脑安全会议上，一组研究人员展示他们利用爱疯就可以以80%的精确度检测出附近一个电脑键盘的键入内容。
The researchers designed a malicious app for the iPhone 4. When you place the phone near a keyboard, it exploits accelerometer and gyroscope data to sense vibrations as the victim types—detecting whether keystrokes come from the left or right side of the keyboard, and how near or far subsequent keys are from each other. Then, using that seismic fingerprint, the app checks a pre-created "vibrational" dictionary for the most likely words—a technique that works reliably on words of three letters or more。
The researchers designed a malicious app for the iPhone 4. When you place the phone near a keyboard, it exploits accelerometer and gyroscope data to sense vibrations as the victim types—detecting whether keystrokes come from the left or right side of the keyboard, and how near or far subsequent keys are from each other. Then, using that seismic fingerprint, the app checks a pre-created "vibrational" dictionary for the most likely words—a technique that works reliably on words of three letters or more。
这个事得归功于爱疯4可以应用的一个"间谍"App.当受害者敲击键盘时，键盘附近的爱疯就能利用重力加速度传感器和回转仪的数据迅速感知键盘的震动—例如打击是来自键盘的左侧还是右侧，后续的敲击距离的远近等。利用这种震动指纹，爱疯可以检索已有的“震动字典”找到最接近的文字（这个技术目前要求单词的长度不小于3个）。
Of course, you'd need to install the app to allow it to spy. But whereas most apps have to ask permission to access location data or the camera, that's not so for the accelerometer. This kind of attack may offer good reason to limit accelerometer access too—and keep iPhones from becoming "spiPhones."
Of course, you'd need to install the app to allow it to spy. But whereas most apps have to ask permission to access location data or the camera, that's not so for the accelerometer. This kind of attack may offer good reason to limit accelerometer access too—and keep iPhones from becoming "spiPhones."
当然了，要想具有窃听功能，首先爱疯用户得安装这种App.虽然许多App在获取图像或位置信息时需要得到许可，但重力加速度传感器却可以随意使用。看来，为了防止爱疯变成“间谍”疯，限制重力加速度传感器的使用权还是必不可少的~
