pre-teen

Low Maturity

Chainfire

Ice Cream Sandwich

You are being watched...Retailers, crooks, the government, and others shady individuals are tracking your movements. Even when your Wi-Fi is turned off, your phone may be broadcasting information to whomever is in range which can be used both to track repeated visits to as well as your exact movements in an area under surveillance.

It's not a big step to couple this to personal information - a retailer for example, could track your trip to the register and correlate with your payment information. Now the tracking hardware and software vendors, the store (or chain) owner, their business partners, they can now all track where you are every time you come into range of one of their systems, and fully profile who you are, what you do, your financials, and your daily patterns! 

That is just one example, but there are many uses for tracking you. Make no mistake, this is happening in the real worldtoday.Pry-FiOne solution is shutting off Wi-Fi completely (including the background network scanning, a setting most people don't know about), but you would lose benefits like automatically connecting to known Wi-Fi networks and improved location awareness for your apps. It also does nothing to help the situation for others.

Pry-Fi will prevent your device from announcing all the networks it knows to the outside world, but it will still allow background scanning and automatically connecting to Wi-Fi networks. While you are not connected to a Wi-Fi network, the MAC address will constantly be pseudo-randomized, following a pattern that still makes the trackers think you are a real person, but they will not encounter your MAC address again. This will slowly poison their tracking database with useless information.

When you do connect to a Wi-Fi network, unless you specify otherwise, your MAC address will also be randomized - the same MAC address will not be used the next time you connect to this or any other network.War!Though of course the companies involved with these trackers claim they wouldn't use the data maliciously, the possibility is there, and we all know that if somethingcanbe abused, ultimately itwillbe. There do not appear to be any laws against these practices yet, nor is it likely Wi-Fi will be redesigned any time soon to get rid of the information leaks.

But wecanmake an effort to reduce the usefulness of the tracking data for the exploiters. Pry-Fi comes with aWarmode, which when enabled tries to make your Android device appear like dozens of people. Just wandering around an area under Wi-Fi location surveillance for a few minutes can ruin the tracking data for the period of your stay.Proof of ConceptThis is proof-of-concept code, and how for it will go in the future depends on interest and how well it works. It has been tested on several devices and seems to work, but it is very young still. The magic the app does to achieve its purpose is ever subject to changing Android security policies and OEM customizations, so even though it works now, there really is no saying if it will still be possible in future firmwares.

Of course you should also keep in mind that tracking can be done in many ways, and these W-Fi signals are far from the only method in use.More...Further details, device compatibility information, FAQ, discussion, etc is all available on XDA-Developers.com here:http://forum.xda-developers.com/showthread.php?t=2631512您正在观看... 

零售商，骗子，政府，以及其他个人的黑幕正在跟踪你的动作。甚至当你的Wi-Fi已关闭，您的手机可能会广播信息给任何人在其范围内都可以使用跟踪多次前往以及监视您的具体变动的区域。

这不是一大步，以这对夫妻个人信息 - 零售商例如，可以跟踪你的旅行到寄存器，并与您的付款信息相关联。现在跟踪硬件和软件厂商，卖场（或链）的所有者，他们的生意伙伴，他们现在可以全部跟踪您的每一次你进入他们的系统之一的时间范围内，充分简介你是谁，你做什么，您的财务状况，和你的日常模式！

这只是一个例子，但也有许多用途，用于跟踪你。毫无疑问，这是今天发生在现实世界中的。撬网络连接

一种解决方案是完全切断的Wi-Fi（包括背景网络扫描，设置一个大多数人不知道），但你会失去像自动连接到已知的Wi-Fi网络和改进的位置感知为您的应用程序的好处。它也无助于帮助他人的情况。

撬-Fi将阻止设备宣布所有它知道到外面的世界的网络，但它仍然会允许后台扫描，并自动连接到Wi-Fi网络。当您没有连接到Wi-Fi网络，MAC地址会不断地伪随机，下面一个模式，仍使纤夫认为你是一个真正的人，但他们不会遇到你的MAC地址再次。这会慢慢毒死他们的跟踪数据库无用的信息。

当你做连接到Wi-Fi网络，除非你指定，否则，你的MAC地址也将被随机化 - 相同的MAC地址不会被下一次连接到这个或任何其他网络中使用。战争！

当然，虽然参与这些纤夫的公司声称他们不会使用的数据恶意的可能性是存在的，而且我们都知道，如果事情的能被滥用，最终它的会是。似乎没有要反对这些做法的任何法律还没有，也不是可能的Wi-Fi将被重新设计，任何时间很快摆脱了信息泄漏。

但是，我们可以尽量减少跟踪数据的剥削者的有用性。撬网络连接配备了战争模式，启用时会尝试让你的Andr​​oid设备出现像几十人。只是四处游荡下的Wi-Fi定位监控的区域几分钟就可以毁掉跟踪数据为您的逗留期间。

概念证明

这证明了概念代码，以及如何为它会在未来取决于兴趣，以及它如何运作。它已经过测试的几台设备，并似乎工作，但它是非常年轻依旧。应用程序确实达到了目的神奇的是不断受到不断变化的Andr​​oid安全策略和OEM定制，所以即使它的工作原理现在，真的是没有话说，如果它仍然有可能在未来的固件。

当然，你也应该记住，跟踪可以在许多方面进行，而这些W-Fi信号远离正在使用的唯一方法。更多... 

进一步的细节，设备兼容性信息，常见问题解答，讨论等都是可以在XDA-Developers.com这里：http://forum.xda-developers.com/showthread.php?t=2631512

[root] Pry-Fi

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