安卓应用会秘密追踪用户行踪
文章来源:未知 文章作者:enread 发布时间:2016-08-11 08:31 字体: [ ]  进入论坛
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Three years ago, the Federal Trade Commission dimmed hopes for the Brightest Flashlight app for Android, slapping its developer with charges of consumer deception1. Why? The app was transmitting users' locations and device IDs to third parties without telling the users or getting their permission. Permissions, though, are only a small part of the Android- app privacy story. 
 
New research from Northeastern's Guevara Noubir and colleagues shows that Android apps can be manipulated to reach inside your mobile phone to track your whereabouts and traffic patterns, all without your knowledge or consent.
 
The researchers know this because they built an Android app and tested it.
 
Their system uses an algorithm that inserts data from the phone's built- in sensors2 into graphs of the world's roads. The researchers applied3 the algorithm to various simulated and real roadtrips. For each trip, the system then generated the five most likely paths taken. The most recent results? A 50 percent chance that the actual path traveled was one of the five.
 
"For $25, anyone can put an app on Google Play, the store for Android apps," says Noubir, professor in the College of Computer and Information Science. "Some of them may be malicious--no one is screening them."
 
If an Android app wants to access sensitive user information, such as location,it must let the user know. But often permission for such access is buried in terms- of- use agreements--the small print that many users don't read--or comes up not when the app is downloaded but later, unbeknownst to the user, when access for that information kicks into gear.
 
Android apps present further privacy risks because they automatically have access to key sensors inside the phone that detect the device's location, movements, and orientation4. Together these sensors can provide clues to everything from the route you take to work to whether you carry your phone in your pocket (the phone is relatively5 stable) or your purse (it swings).
 
"In our research we show that an app in fact does not need your GPS or Wi- Fi to track you," says Noubir. "Just using these sensors, which do not require permissions, we can infer where you live, where you have been, where you are going."


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1 deception vnWzO     
n.欺骗,欺诈;骗局,诡计
参考例句:
  • He admitted conspiring to obtain property by deception.他承认曾与人合谋骗取财产。
  • He was jailed for two years for fraud and deception.他因为诈骗和欺诈入狱服刑两年。
2 sensors 029aee483db9ae244d7a5cb353e74602     
n.传感器,灵敏元件( sensor的名词复数 )
参考例句:
  • There were more than 2000 sensors here. 这里装有两千多个灵敏元件。 来自《简明英汉词典》
  • Significant changes have been noted where sensors were exposed to trichloride. 当传感器暴露在三氯化物中时,有很大变化。 来自辞典例句
3 applied Tz2zXA     
adj.应用的;v.应用,适用
参考例句:
  • She plans to take a course in applied linguistics.她打算学习应用语言学课程。
  • This cream is best applied to the face at night.这种乳霜最好晚上擦脸用。
4 orientation IJ4xo     
n.方向,目标;熟悉,适应,情况介绍
参考例句:
  • Children need some orientation when they go to school.小孩子上学时需要适应。
  • The traveller found his orientation with the aid of a good map.旅行者借助一幅好地图得知自己的方向。
5 relatively bkqzS3     
adv.比较...地,相对地
参考例句:
  • The rabbit is a relatively recent introduction in Australia.兔子是相对较新引入澳大利亚的物种。
  • The operation was relatively painless.手术相对来说不痛。
TAG标签: users app Android
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