关了也没用，大量Android程序一直在跟踪你！
根据CNET分享的国际计算机科学研究所的研究，大约有17000个Android应用程序收集用户信息，并且在安卓设备上创建永久记录的动作。研究人员说，数据收集违反了搜索引擎收集数据的政策，这些数据可用于在用户的广告宣传中。
这些应用可以通过将您的广告ID（一种用于定制广告的独特但可重置的号码）与手机上难以或无法更改的其他标识符相关联来跟踪您。这些ID是设备的唯一签名：MAC地址，IMEI和Android ID。根据Google针对开发人员的最佳做法的建议，只有不到三分之一的收集标识符的应用只会使用广告ID 。
领导这项研究的Serge Egelman说，当应用程序收集这些持久性标识符时，“隐私将变得透明”。他说，他的团队在9月向谷歌报告了调查结果，他们发现大多数应用程序都会向广告服务发送识别信息，这显然违反了谷歌的政策。
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