Questions tagged [privacy]

For questions related to enforcing you privacy on Android devices

Privacy involves how safe your private data are from "spying eyes" -- that is, if they are really "private" to you and those whom you willingly trust with them. While a "normal user" is unable to tell how safe an app is in this context, there are several apects he/she can take care of -- or where one can check, e.g.:

  • only install apps from trusted sources (minimizing the risk of trojans and other )
  • checking user reviews before installing an app (see if it showed "conspicious behaviour" in the past)
  • checking the an app requests. When in doubt, and no explanations are found on either the app's page at or the developers website, don't hesitate to contact the developer. No answer is an answer as well. If the dev says "Don't worry, that's just needed for ads" -- that's not necessarily a relief (see Risks involved with permissions)
  • Don't hesitate to buy an app, if there's a pay-version without an "ad module" attached. This increases your privacy level (again, see the Risks involved article on our site for details)
  • if you find anything "conspicious" not covered here or answered otherwise, feel free to raise the topic posting a question. This is the tag for you in these cases.

And then there are the "after-life" issues. No, I don't talk about your health -- but about "you and your device living together". Once you've got a new device, you might have no need for your "old device" anymore. So before giving it away, you might want to read this :)

Further readings

It neither hurts to check out our most frequented questions on this topic :)

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What information does stock Android send to Google by default, and how do I opt-out?

I'm about to buy my first Android phone. My understanding is that, in order to download apps and get updates from Google Play, I need to be permanently signed into a Google account that's linked to my name via credit card information. I find…
Nick
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is it possible to disable Google remote kill switch?

our company is considering using the Android platform for future developments. Some folks raised concerns over Google ability to remotely delete applications on the device. they are arguing that if Google can (and did) remotely un-installed apps…
user3346
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Is there a way to give permissions temporarily?

Is there a way to take away permissions when i leave an app? i dont have root and also no intention to root. is it possible to do this with adb or something??
user335591
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Preparation steps for sending a phone back under warranty

I'm sending my (unrooted) nexus s off repair under under warranty, and was just wondering if there any precautions I can take to limit the amount of personal info on the device, lest the engineers take a look through my contacts/emails etc.?…
Matt
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Prevent apps from getting list of installed apps on phone

How I can prevent apps from knowing which apps I've installed? Is there something in premissions in settings or hack or trick with root access apps?
Developia
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Options to mitigate espionage/tracking possibilities

Which options exist in (stock/custom) firmware to mitigate smartphone espionage/tracking possibilities? I talk about things like: Disable/use random mac/do not leak ssid on active WLAN probing Warn on/do not acknowledge silent/type-0 SMS etc. I…
pythonimus
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privacy protection password

Different Sims were switched back n forth out of my BluStudio5.0 and now after 3 factory data reset, the lock screen remains asking for a privacy protection password. I don't have a computer to flash the phone, and u can't find the receipt of…
jenn
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How an Android app can restrict all my accounts on my phone?

I'm using multiple accounts for an android app in my phone. today the app blocked all my accounts because it's not allowed to have more than one . I've had android 10 on my phone . the question is: what type of data an app knows about my phone?…
Amir Khan
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What is Firebase App Indexing Under Google Services Settings

Where do all these data go? Is this a privacy issue? Here it is. It's very intrusive !
The Beatles
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Does Android keep deleted photos and images from the phone?

I heard from a friend that android phones can trace deleted photos and images and videos back even after deleting. Is that true? If so, how can it keep things there unseen until a technician finds out in service centre? Thanks in advance.
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Introspecting/monitoring apps to see whether they steal user data

It appears that a number of apps on the market place require a number of 'permissions' such as permission to access the files/photos, text messages, contacts, browser history, etc of the phone, usually only when a very specific subset of this…
user36587
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How to prevent google to parse my calendar?

I use Android 6.0.1 on a Samsung Galaxy J5. I have my own mail + contacts + calendar server on a dedicated server. I noticed that when I put some entrys in my calendar (smartphone) with an address, when I open Waze, I have the choice proposed…
Gilles Quénot
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My Android Samsung won't switch on or charge after it got wet

My phone got wet. So I left it in rice and blow dried it with a hair blower. I've left it on charge for a day and it did not switch on or showed that it's charging. I left the battery outside for quite a while but still seems not to work. PLEASE I…
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Malicious Android Apps installed remotely on my device

I recently installed Trend Micro Mobile Security in order to to check my apps if all are safe and secure since I have a rooted Xperia Phone which may be more prone to attacks. I had clean results then I've got it uninstalled. The problem starts when…
avadoo
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How to protect my files from the Mobile repairers?

I'm using Samsung Galaxy Core GT model. I have some problem in my Mobile. I want to have my Mobile serviced, so I want to protect my photos and other data from the Mobile repairer/technician. I've heard that now a days those people are hacking the…