[root] Pry-Fi

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 world today.

Pry-Fi

One 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 something can be abused, ultimately it will be. 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 we can make an effort to reduce the usefulness of the tracking data for the exploiters. Pry-Fi comes with a War mode, 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 Concept

This 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

Anda sedang diawasi ...

Pengecer, penjahat, pemerintah, dan lain-lain individu teduh melacak gerakan Anda. Bahkan ketika Wi-Fi Anda dimatikan, telepon Anda mungkin akan menyiarkan informasi kepada siapa saja yang berada dalam kisaran yang dapat digunakan baik untuk melacak kunjungan berulang kali ke serta gerakan yang tepat Anda di daerah di bawah pengawasan.

Ini bukan langkah besar untuk pasangan ini untuk informasi pribadi - pengecer misalnya, bisa melacak perjalanan Anda ke kasir dan berkorelasi dengan informasi pembayaran. Sekarang perangkat keras dan perangkat lunak pelacakan vendor, toko (atau rantai) pemilik, mitra bisnis mereka, mereka dapat sekarang semua trek di mana Anda setiap kali Anda datang ke kisaran satu dari sistem mereka, dan sepenuhnya profil siapa Anda, apa yang Anda lakukan , keuangan Anda, dan pola harian Anda!

Itu hanyalah salah satu contoh, tetapi ada banyak kegunaan untuk melacak Anda. Jangan salah, hal ini terjadi di dunia nyata hari ini .

Pry-Fi

Salah satu solusinya adalah mematikan Wi-Fi sepenuhnya (termasuk scanning jaringan latar belakang, pengaturan kebanyakan orang tidak tahu tentang), tetapi Anda akan kehilangan manfaat seperti secara otomatis menghubungkan ke jaringan dikenal Wi-Fi dan meningkatnya kesadaran lokasi untuk aplikasi Anda. Hal ini juga tidak apa-apa untuk membantu situasi bagi orang lain.

Membongkar-Fi akan mencegah perangkat Anda mengumumkan semua jaringan ia tahu ke dunia luar, tetapi masih akan memungkinkan pemindaian latar belakang dan secara otomatis menghubungkan ke jaringan Wi-Fi. Meskipun Anda tidak terhubung ke jaringan Wi-Fi, alamat MAC terus akan pseudo-acak, mengikuti pola yang masih membuat pelacak berpikir Anda adalah orang yang nyata, tetapi mereka tidak akan menemukan Anda alamat MAC lagi. Hal ini perlahan-lahan akan meracuni pelacakan database mereka dengan informasi yang tidak berguna.

Ketika Anda melakukan koneksi ke jaringan Wi-Fi, kecuali jika Anda menentukan sebaliknya, alamat MAC Anda juga akan acak - alamat MAC yang sama tidak akan digunakan pada saat Anda terhubung ke ini atau jaringan lainnya.

War!

Meskipun tentu saja perusahaan yang terlibat dengan pelacak ini mengklaim mereka tidak akan menggunakan data jahat, kemungkinan itu ada, dan kita semua tahu bahwa jika sesuatu bisa disalahgunakan, akhirnya itu akan menjadi. Ada tampaknya tidak akan ada hukum yang melarang praktek-praktek ini belum, juga tidak mungkin Wi-Fi akan didesain ulang dalam waktu dekat untuk menyingkirkan kebocoran informasi.

Tapi kita bisa berusaha untuk mengurangi kegunaan dari data pelacakan untuk penghisap. Membongkar-Fi dilengkapi dengan Perang mode, yang bila diaktifkan mencoba untuk membuat perangkat Android Anda muncul seperti puluhan orang. Hanya berkeliaran suatu daerah di bawah pengawasan lokasi Wi-Fi selama beberapa menit dapat merusak data pelacakan untuk periode tinggal Anda.

Bukti Konsep

Ini adalah bukti-of-konsep kode, dan bagaimana untuk itu akan pergi di masa depan tergantung pada minat dan seberapa baik kerjanya. Ini telah diuji pada beberapa perangkat dan tampaknya bekerja, tapi sangat muda masih. The magic app tidak untuk mencapai tujuannya yang pernah tunduk pada perubahan kebijakan keamanan Android dan kustomisasi OEM, jadi meskipun ia bekerja sekarang, benar-benar ada pepatah jika masih akan mungkin di Firmwares masa depan.

Tentu saja Anda juga harus diingat bahwa pelacakan dapat dilakukan dengan banyak cara, dan sinyal W-Fi ini jauh dari satu-satunya metode yang digunakan.

Lebih ...

Rincian lebih lanjut, informasi perangkat kompatibilitas, FAQ, diskusi, dll semua tersedia di XDA-Developers.com sini:

http://forum.xda-developers.com/showthread.php?t=2631512

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 world today.

Pry-Fi

One 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 something can be abused, ultimately it will be. 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 we can make an effort to reduce the usefulness of the tracking data for the exploiters. Pry-Fi comes with a War mode, 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 Concept

This 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