Location Tracking : You Can Be Tracked Through Your Smartphone, Even When Your GPS Is Off

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Your privacy is important, especially when it concerns your activities online. Even though we open windows into our world through social media like Facebook, Twitter, and Instagram, what we choose not to share is just as important as what we choose to.

That’s why it’s important to be aware of not only how much of your activity online is public, but also how your devices treat your personal data. A group of researchers have just proved that, even if you turn off your GPS on your smartphone, that doesn’t mean a dedicated person can’t still track you.
No matter the operating system, apps are now forced to ask what permissions we are willing to give it before it can do its job. GPS is most crucial to a lot of these. While it adds a bit of convenience, if that information is in wrong hands it can be used to harm you.

Researchers at Princeton University were able to design an app that takes data from your smartphone and tracks your location despite you turning the GPS off. It pulls data from basic sensors otherwise not secured by permissions, like the accelerometer, magnetometer and barometer. In addition, your device’s IP address, time zone, and whether you’re on mobile data or using Wi-Fi somewhere, all can be used to help pinpoint where you are.

The trick here is the app has to figure out what kind of activity you’re performing, based on the sensor data. Once it knows whether you’re walking, driving around, or in the air, it’s pretty easy to parse where you are.


The sensors can determine how you’re moving around based on your speed. If the accelerometer reads slow movement it means you’re walking or jogging, while a faster pace means you’re in a vehicle. Even faster than that, combined with your recorded altitude from the barometer, and you’re on a flight. That, and the magnetometer can tell which direction you’re pointing at all times. After that, algorithms can narrow down where you probably are based on all the intersecting data points. All of this by comparing to publicly available weather readings, roads, and flight paths. And the further you continue to travel, the more accurate its estimates get.

So, how do you keep yourself safe from something like this? The easiest way is to never download an app or game that’s not from a reputable source. Just 2,000 lines of code in Princeton’s app was able to execute everything needed to get a person’s location.

Always do your research before downloading. After all, you can wait a few minutes to verify before downloading that app that promises free points or coins right
आपकी गोपनीयता महत्वपूर्ण है, खासकर जब यह आपके ऑनलाइन गतिविधियों की चिंता करती है यद्यपि हम सोशल मीडिया जैसे फेसबुक, ट्विटर, और इंस्टाग्राम के माध्यम से अपनी दुनिया में खिड़कियां खोलते हैं, हम जो साझा नहीं करना चाहते हैं वह उतना ही महत्वपूर्ण है जितना हम चुनते हैं।

इसीलिए यह जानना महत्वपूर्ण है कि न केवल आपके ऑनलाइन गतिविधि कितनी सार्वजनिक है, बल्कि यह भी कि आपके डिवाइस आपके व्यक्तिगत डेटा का कैसे उपयोग करते हैं। शोधकर्ताओं के एक समूह ने यह साबित किया है, भले ही आप अपने स्मार्टफोन पर अपना जीपीएस बंद कर दें, इसका मतलब यह नहीं है कि एक समर्पित व्यक्ति अभी भी आपको ट्रैक नहीं कर सकता है
ऑपरेटिंग सिस्टम को कोई फर्क नहीं पड़ता, अब ऐप को यह पूछने को मजबूर किया जाता है कि इससे पहले कि यह काम करने से पहले हम इसे देने के लिए तैयार हैं, इनमें से बहुत से जीपीएस सबसे महत्वपूर्ण है हालांकि यह सुविधा का एक छोटा सा जोड़ता है, अगर वह जानकारी गलत हाथों में है, तो इसका उपयोग आप को नुकसान पहुंचा सकते हैं

प्रिंसटन विश्वविद्यालय के शोधकर्ता एक ऐसे एप को डिज़ाइन करने में सक्षम थे जो आपके स्मार्टफोन से डेटा लेता है और जीपीएस बंद करने के बावजूद आपके स्थान को ट्रैक करता है। यह मूलभूत सेंसर से डेटा को खींचता है अन्यथा अनुमतियों से सुरक्षित नहीं होता है, जैसे एक्सीलरोमीटर, मैगनेटोमीटर और बैरोमीटर। इसके अतिरिक्त, आपके डिवाइस का आईपी पता, टाइम ज़ोन, और आप मोबाइल डेटा पर या वाई-फाई का उपयोग कर रहे हैं या नहीं, ये सभी का उपयोग करने के लिए इस्तेमाल किया जा सकता है जहां आप हैं

यहां की चाल यह है कि सेंसर डेटा के आधार पर ऐप को यह पता लगाना होगा कि आप किस तरह की गतिविधि का प्रदर्शन कर रहे हैं। एक बार यह जानता है कि आप चल रहे हैं, चारों ओर चलाते हैं, या हवा में हैं, यह पार्स करना आसान है कि आप कहां हैं।


सेंसर यह निर्धारित कर सकते हैं कि आप अपनी गति के आधार पर कैसे घूम रहे हैं। यदि एक्सीलरोमीटर धीमी गति से पढ़ता है तो इसका मतलब है कि आप चलते हैं या जॉगिंग करते हैं, जबकि तेज़ गति का मतलब है कि आप किसी वाहन में हैं। उस से भी तेज, बैरोमीटर से आपके रिकॉर्ड की ऊंचाई के साथ संयुक्त है, और आप उड़ान पर हैं। यही, और मैग्नेटोमीटर बता सकता है कि आप किस दिशा में हर समय ओर इशारा कर रहे हैं। उसके बाद, एल्गोरिदम नीचे कम कर सकते हैं, जहां आप संभवत: सभी बिंदुओं के बिंदुओं पर आधारित हैं। सार्वजनिक रूप से उपलब्ध मौसम रीडिंग, सड़कों और उड़ान पथ की तुलना करके यह सब। और जितना अधिक आप यात्रा करना जारी रखेंगे, उतना सटीक इसके अनुमान मिलेंगे

तो, आप इस तरह से अपने आप को सुरक्षित कैसे रख सकते हैं? सबसे आसान तरीका ऐप या गेम को कभी नहीं डाउनलोड करना है जो एक सम्मानित स्रोत से नहीं है। प्रिंसटन के ऐप में सिर्फ 2,000 लाइनें कोड को किसी व्यक्ति के स्थान को प्राप्त करने के लिए आवश्यक सभी चीजों को निष्पादित करने में सक्षम था।

हमेशा डाउनलोड करने से पहले अपने शोध करें। आखिरकार, आप उस ऐप को डाउनलोड करने से पहले कुछ मिनटों तक प्रतीक्षा कर सकते हैं, जो मुफ़्त अंक या सिक्कों का वादा करता है

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