Questions tagged [privacy]

For questions related to enforcing you privacy on Android devices

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9
votes
7answers
15k views

How do you encrypt your device running CyanogenMod 12.1?

CyanogenMod 12 and 12.1 'Encrypt phone' setting is broken, and has been for quite a while. Is there any way to encrypt the phone in some other fashion? Can CM be sideloaded onto a phone with an ...
6
votes
2answers
69k views

How can I hide phone number during incoming call and display only contact name?

I wish to show only contact name during incoming call, for some privacy reasons I wish to hide numbers and display only contact name. I won't usually pick up anonymous calls, is there any option to ...
0
votes
2answers
1k views

Why does Google Play Services does make VNC connections?

today I did had fun with Netstat on my device and saw that Google Play Services are making VNC connections from my device to a Google server. The question here is : why ? Sounds to me like a backdoor ...
0
votes
0answers
58 views

Manage file access for apps (Linux user accounts/groups)

I recently realized that Xprivacy is not capable of restricting the file storage access. So now I'm looking for a reliable way to do that. I guess denying the general storage permission would ...
2
votes
0answers
41 views

How do some android apps know from where they have been downloaded?

If you read privacy policy of some online apps, you will find that their services also store information about from where you download their app. I wonder if this is possible because apk is a ...
1
vote
1answer
3k views

How can I recover deleted photos and videos from vault app [closed]

I used vault app to hide some pictures and videos. I just formatted my phone after then I re-installed vault and I am unable to find my pictures and videos. Is there any way to recover my pictures ...
10
votes
4answers
864 views

What's the most complete way to erase all the data from my phone so it cannot be recovered?

I just got my replacement Droid and will be sending my current Droid back to Motorola. I'm sure they are going to refurbish it and resell it. I've backed up everything and I'm going to be keeping my ...
0
votes
0answers
298 views

Is it possible to put a password to let usb debugging work?

So, I learned that, if we have a broken screen, but had the usb debugging enabled, we could do a lot of things, and even use its apps from a desktop computer, until we can get it properly fixed. But, ...
1
vote
0answers
66 views

Are linked contact links ever sent to Google?

Assume I have a friend who is using an anonymous Threema ID. That ID has no phone number and no email address associated with it. That person also has an email address and a phone number, both of ...
0
votes
1answer
87 views

The Android phone app wants to know my location - why?

I'm running CyanogenMod 13.0 without Play Services. I launched the Phone app and wanted to search through the contacts. Then a popup appeared, that: Allow Phone to access this device's location? ...
23
votes
6answers
1k views

I have sold my phone on eBay. What should I do before I send it off?

I have an Android phone which I just sold on eBay. What measures should I take before posting it off to its new home? Please answer thoroughly!
7
votes
1answer
10k views

What really happens during a factory reset? Does it securely erase all data?

When you "factory reset" an android phone, are you formatting the phone storage by securely erasing all data and writing over them with zeroes, or are you simply deleting the files by hiding them from ...
23
votes
3answers
96k views

What does the voice privacy setting do?

In perusing the settings on my EVO today, I noticed that there is an option under call settings named "Voice Privacy". The description beneath the checkbox merely states "Enable enhanced privacy mode":...
8
votes
5answers
16k views

how can I randomize my MAC address every time my WiFi is turned on?

Given the increased prevalence of systems which track people's movements by their Mac addresses I'd like to obscure mine. I have a rooted galaxy note 2 with busybox installed. I can change my MAC ...
3
votes
1answer
4k views

Does Wunderlist store data in the server in encrypted form?

How secure and private is Wunderlist? For example does it only transfer data in encrypted form but stores it unencrypted? I would like to be able to store passwords relating to work on my phone but am ...
1
vote
0answers
49 views

Is the WiFi-communication during installation harming my privacy?

I want to use Android (6.0 / marshmallow) on my new device (OnePlus 3) and want to set it up as google-free as possible (as example). By default, I am forced to set up a Wi-Fi network when I boot my ...
1
vote
0answers
884 views

Signal app - can senders see when the recipient has read the message?

With the Signal app, can senders see when the recipient has read the message? I notice those two hatches but don't they just mean the message has been sent?
1
vote
1answer
184 views

Can android collect info about wifi routers even if Google Play Service is disabled?

Androids newer versions have changed the 'GPS' button into a 'Location' button which now offers 3 options for determining your position (recording wifi router information and comparing it to a google ...
0
votes
1answer
576 views

How to lock down WhatsApp permissions?

A number of friends are using WhatsApp for communication. So I'm thinking about installing it. However when I read the question about its permissions I'm asking myself if there is a possibility to ...
11
votes
2answers
15k views

Can I block specific apps from using GPS?

I like to leave GPS enabled so that it's ready to go when I open Maps or certain other location based apps. However, one app that I don't want to access GPS is Facebook. There is, as far as I can ...
2
votes
0answers
74 views

Why does Setup Wizard transmit/receive data even long after the Android device has been set up?

Even weeks after Android devices (tested on KitKat) have been set up, Setup Wizard still gets called frequently. Using Xprivacy, it is clear that Setup Wizard frequently connects to Google servers. ...
1
vote
0answers
71 views

Closed circuit app on Android

I'd like to know if there is a way to run an android app on a closed circuit minimalist type of android VM on an android device so that I can have a full control of what the app has access to and when ...
-3
votes
1answer
684 views

I see ads on my phone and apps auto install

Usually, I find full screen ads on my Android mobile. Also, apps like task bucks automatically install on my smartphone.
1
vote
0answers
497 views

com.android.launcher3 this shows up on my gmail history, what is it?

I am always signed into my gmail on my phone. Today checking my gmail history on my computer I notices this app pops up allot. What is it and what does it do?? com.android.launcher3
0
votes
1answer
175 views

How to Prevent CM13 Calling by Itself?

I noticed today that my Samsung Galaxy S4 with CM13 (unofficial Kyasu's ROM) called two my contacts itself; those contacts were those which I keep in my blacklist; which was also why I had react to ...
1
vote
1answer
134 views

Hard brick phone exchange and deleting data

I have a Samsung Galaxy Note 4. While it was charging (it was near full charge) it rebooted on its own and continued to charge. It then must have shut itself down because it was off. I could not turn ...
1
vote
1answer
1k views

Why do applications enforce read-write and read-only permissions for other apps to use it? [closed]

While reading a book, Android Wireless Application Development, it tells that Applications might also enforce their own permissions by declaring them for other applications to use. The applications ...
0
votes
1answer
346 views

Synchronize google apps with private server?

Is there a way to synchronize google apps with my own server? Does Google offer something like that? Maybe for business use? Or is there maybe an unofficial way of doing it? I couldn't really find ...
1
vote
0answers
571 views

Question about removing Gapps (Lollipop)

I have some questions about removing Gapps. I have Huawei P8 Lite with Android 5.0.1. I want to put CM or AOSP on it, but it seems that there are no custom ROMs available as of yet. I decided the ...
0
votes
1answer
851 views

How to prevent Internet access in NetGuard, “Allow” checkboxes greyed out

In Android 6, I want to prevent some apps from using the Internet, so I installed NetGuard. Let's say for instance that I want to prevent Sky Map from accessing the Internet. Where should I click? As ...
13
votes
2answers
14k views

Can the RECEIVE_SMS permission be used to intercept SMS messages?

I've noticed quite a few apps requesting the RECEIVE_SMS permission. Two things are clear to me here: RECEIVE_SMS enables an app to "snap" incoming SMS READ_SMS just applies to SMS already stored As ...
11
votes
4answers
98k views

How to block all phone calls, but only allow SMS and networking?

It's kinda disturbing when people keep calling me during work or meetings, but to me it's okay if I receive short messages or Whatsapp message because I can reply them few minutes later in a short ...
0
votes
1answer
124 views

Are Chinese phones less safe than others? [closed]

I'm on budget and want a fully fledged smartphone. I'm OK with Apple as I know they tend to not share my usage data. But Apple is too expensive. So I need to buy Android and most of the manufacturers ...
0
votes
1answer
4k views

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 ...
2
votes
1answer
6k views

Require fingerprint to answer call?

A friend has a problem with other people answering their phone and thereby intercepting their calls. Is anybody aware of an app, setting, or Android distro that requires a fingerprint swipe to answer ...
2
votes
1answer
427 views

What should I do before sending my bricked phone to repair?

There are similar questions here, but this one is about a phone that doesn't turn on. I can't reset to factory. What should I do? Change my Google password? What information will the technician have ...
2
votes
0answers
5k views

Chrome - How to clear incognito pages from memory/history?

Short: As Chrome reopens the incognito pages/tabs after closing it (the browser, even after ending it in the "Active applications" list), how can one make sure those pages are forgotten by the phone? ...
4
votes
1answer
126 views

Joining a public WiFi made the owner able to send me a Facebook friend request. How?

I walked by a bar with free, unsecured WiFi. My device auto-joined it, and a minute later I had a friend request on Facebook from that very bar. How did they get my Facebook identity just from ...
0
votes
0answers
20 views

marshmallow and personal security/privacy [duplicate]

I've been reading the news in the US about a court order for Apple to help the FBI bypass the security check present on devices running iOS8+. Since iOS8, Apple has stopped storing encryption keys on ...
0
votes
0answers
54 views

What does stop somebody from flashing a custom recovery and pulling all user data?

For example, I was able to install a Clockworkmod recovery on my Samsung Galaxy Ace 3 phone via Odin and back up all the data in a few clicks. But if I could do it, what would stop somebody else who ...
0
votes
1answer
113 views

does LBE security work on android 4.3?

how do i make LBE work on and android 4.3 stock touchwiz rom? i have tried a few versions but they were in chinese. is there any working English version?
2
votes
0answers
66 views

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 ...
4
votes
2answers
3k views

How to prevent Google aggressively associating my account to my searches?

I understand they can access my searches when I'm logged in, and of course know the search terms I use, but how can I prevent them to logging searches to my account when: I'm not logged in and in ...
28
votes
5answers
2k views

Audit app permissions easily in one place?

Is there anyway to list all the applications installed on your phone and the permissions they require all on one page, or export the list so it can easily be audited?
5
votes
1answer
108 views

Global readable private keys found in storage/emulated/0/data - Possible security risk?

I found following global readable files in /storage/emulated/0/data/IMS: cert.pem private_key.pem I have full access to this files with my file-manager/text-editor, so I think any other app will ...
88
votes
5answers
64k views

Why do so many applications require permission to read the phone state and identity?

Why do so many applications require permission to read the phone state and identity?. Specifically: Phone calls read phone state and identity For example Quickpedia is a Wikipedia portal, but ...
1
vote
1answer
682 views

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 ...
5
votes
1answer
84 views

How to be sure that you are not tracked with anti-theft software or similar when using tab previously owned by someone?

I have seen the amount of pictures and personal data an anti-theft software can dig on person using a stolen phone. How can one make sure that he is not tracked through similar software when using a ...
3
votes
1answer
3k views

Disabling the Google App

A while back, I disabled the Google App (com.google.android.googlequicksearchbox). IIRC, disabling the app caused some problems which I discovered over time. Unfortunately, all my notes on the topic ...
1
vote
0answers
3k views

Opt-out for Google Analytics on Android/Chrome mobile browser

Google has an opt-out for Google Analytics To provide website visitors with the ability to prevent their data from being used by Google Analytics, we have developed the Google Analytics opt out ...