For more generic questions relating security issues. For specific issues having their own tags, please use those -- e.g. 'malware', 'antivirus', 'privacy', 'lost-phone'. Please see the full tag wiki for more. For more in-depth Android security issues, you might rather want to visit our sister-site ...

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1
vote
1answer
35 views

Auditing application's use of GPS

There is an application on my phone that triggers the GPS at random intervals. The start of this polling doesn't correlate with any newly installed applications so I imagine a recent update or ...
16
votes
4answers
20k views

Certificate Install without mandatory PIN lockscreen

Google Support says: The type of lock that's acceptable may be predetermined by your system administrator. Where I can define what's acceptable? I can regenerate the certificate if needed. So ...
0
votes
1answer
351 views

DLNA device is requesting access to media files on your phone

I got home from the airport today and I keep getting this "Grant access" pop-up ... Did my phone get hacked? Did some device in my house get hacked? Or am I just paranoid?
1
vote
0answers
322 views

samsung grand duos 9082 doesn't see that my SD card is encrypted on it and there is no option to decrypt

I encrypted my samsung grand duos 9082 and then my SD card, using the settings for encryption. But then, to unlock screen, I decrypted my handset and I unlocked it by my samsung account. Then, the ...
1
vote
2answers
93 views

Show which program / task uses the camera (in background)

On my Samsung Galaxy S2 I9100 with CM11, I always hear a very subtle click of the autofocus whenever the camera app is loaded. Since some weeks, I heard that sound randomly, especially after every ...
0
votes
1answer
66 views

Can app access the text in my default memo app?

I use Samsung Galaxy S2 and store some personal data in the default memo. I have updated the phone to the latest version. Can any app just access the data in my memo?
4
votes
6answers
3k views

How do I lock my HTC whenever I want?

I have a HTC Wildfire S and set up the screen lock pattern for it. This triggers after some time but sometimes I want to lock it myself, for example if I leave the office and let my phone on the desk. ...
1
vote
0answers
74 views

K9 mail — susceptible to MITM attacks?

I am using K9 on Android and have set the SSL option to 'SSL (strict)'. My understanding is that with this option K9 definitely requires a valid SSL certificate which is issued by a trusted CA, i.e. ...
0
votes
1answer
838 views

Which android devices have optimized encryption hardware?

I've been using a Nexus 5 for a while and using FS encryption. Apple's iOS Security document states that: Every iOS device has a dedicated AES 256 crypto engine built into the DMA path between ...
8
votes
3answers
8k views

How to remotely log out all web-based Gmail sessions from my Android phone

Can I remotely sign out all web sessions of Gmail from my Android phone? This question explains how to do this from the Gmail website with a standard web browser. This doesn’t work from my phone ...
0
votes
1answer
535 views

How does Redphone encryption work?

Redphone is known for providing encryption for end-to-end calls. I am eager to know how it protects our privacy from telecom companies. How does it secure our call and text and protect our privacy ...
0
votes
2answers
272 views

Android Spy Apps

Is it possible for someone to install a spy app on an Android phone JB os? Do these spy apps really work? Can anyone install this spy app to your mobile phone without your knowledge? If you suspect ...
0
votes
1answer
1k views

Manually add UID to a system group

Let's say i create a custom group on Android (We will call it GID 5000) and i want to add users (apps) to this group, how can i manually add the app's UID to GID 5000 ? If possible, without touching ...
0
votes
0answers
100 views

Android 4.3 Privacy Protection settings get reset from time to time

I use JB 4.3.1 (Avatarrom). In system settings > security > Privacy protection I can set which apps have access to my contacts. I've set this many times, and I notice that after one or two days ...
0
votes
0answers
92 views

Radius Server On Android

It is possible to compile the FreeRADIUS server for Android? I mean if I can compile it for the ARM architecture to run on Android as a system binary or in a chroot environment? If so can someone ...
4
votes
4answers
6k views

Remote factory reset and changing Google password

In case I ever lose my Nexus 4 phone, I've opened to the Google Settings app, then tapped "Android Device Manager" and from there, I've enabled both "Remotely locate this device" and "Allow remote ...
11
votes
3answers
402 views

SwiftKey gets removed as input method after every update

Every time SwiftKey gets updated it is removed from the list of input methods. I don't remember having this problem before Android 4.4, but in the last few days SwiftKey had some updates and it just ...
1
vote
0answers
249 views

Secure Galaxy Star GT-S5282 using simcard change alert

How can I secure my Samsung Galaxy Star GT-S5282 using the simcard change alert option. In other words, when a simcard is inserted in my phone a notification SMS is sent to other phones.
10
votes
2answers
11k views

My android phone was stolen. How worried should I be with all my google data inside the phone?

Ok, so my samsung galaxy 5 was stolen. I had gmail, calendar, twitter(tweetdeck), facebook, ... all my personal data in it. I didn't have any app installed that could wipe this information from a ...
0
votes
2answers
3k views

Lookout - Which application is trying to access the system with no authorization

Is there any log where I can check which unknown source app is trying to access the phone without authorization? Lookout keeps popping up this message but don't tell me which application is! It ...
0
votes
1answer
127 views

Is this android mobile device credit card payment system secure and safe?

Mobile device credit card payments and credit card readers are appearing everywhere, but then we all know any payment app's security is nought if the android device is rooted. Before I give my credit ...
1
vote
2answers
544 views

How to disable screen lock during Android development?

I am developing Android app with my daily phone, I want to turn off screen lock only during development. I can done this manually, but that is too troublesome and sometimes I forgot to enable it ...
27
votes
1answer
17k views

How can I verify the authenticity of an apk file I downloaded?

The latest update of Google Maps is unavailable in my country, so I downloaded a version by googling for "Google Maps 5.4.0 apk". I did in fact find it, but now I wonder how I can tell if this is in ...
21
votes
1answer
1k views

Why do some apps with no internet features require internet access?

A couple of apps I've installed or considered say they require internet access even though they have no obvious internet features. One of the most surprising ones was a simple compass app. Why is ...
7
votes
1answer
365 views

Can I recall a command to reset a lost phone?

Last night I lost my Nexus 7 coming back from a friend's house. Since it has a lot of confidential work email on one account I logged into the Android Device Manager and - when it didn't show up - set ...
25
votes
2answers
17k views

How do I get rid of “Network may be monitored” in KitKat?

Ever since I've installed my own CA in the key store I'm getting warnings that the network may be monitored. Well, I guess that's a valid warning if I don't trust these certificates, but I really ...
57
votes
6answers
39k views

My Gmail is signed in through the app on ex-boyfriend's phone

I had my email signed in on the Gmail app on my boyfriend's phone who is now on the other side of the country. I've asked him a couple times to disconnect it but recently checked out Google Play and ...
6
votes
1answer
273 views

Setup Tor server on my Android

How do I setup a Tor server on my Android tablet? I can install the Orbot client, but how do I contribute to the tor network? I have my tablet on a WiFi the most of the day so it would be nice to ...
3
votes
2answers
3k views

Hardware backed Credentials Storage on Galaxy Nexus

First, I hope I choose the right stackexchange for that question. Android 4.3 introduces a "Hardware-backed" Credential Storage. If I go to Settings->Security under the "Credentials-Storage" Header ...
1
vote
1answer
139 views

How does Google find devices for Android Device Manager?

I've seen the news story a few weeks ago that Google has finally implemented a feature similar to Apple's Find My iPhone. The weird thing is that Google says that somehow magically all old devices ...
0
votes
2answers
124 views

Would it be possible to sandbox apps with SELinux?

Many apps require too much permissions that they do not need to function Most apps needs internet connection to talk to some API (let's say updates checking or notifications ..etc) and need to access ...
0
votes
1answer
1k views

I forgot my lock pattern, how do I reset it? [duplicate]

Possible Duplicate: Recovering from forgotten lock pattern I have a Toshiba Thrive Android Table and I forgot what I used as my pattern lock. How do I reset it? Someone please help!
5
votes
2answers
2k views

Restricting Web Access to a single domain on Android tablets?

Our sales team came to me earlier with a question about Android OS. I've never used Android, but I do know it is a Linux-based OS. Frankly, I don't have the time to research for myself the ...
5
votes
2answers
2k views

Looking for Location-Specific Screen Locking Behaviour

I'd like to have a feature that allows my Android phone to change its lock mechanism automatically dependent on location. For example, most of the time I use pattern unlock when out and about but ...
18
votes
1answer
1k views

Why can't a keyboard on the Samsung Galaxy S3 collect passwords?

When I enable an input method (a keyboard app) on a Nexus device, I see the following confirmation message: This input method may be able to collect all the text that you type, including personal ...
11
votes
4answers
5k views

Can my Android device become - remotely and without my permission - a wiretap and get used as surveillance device?

I saw the following article: An article in the Financial Times last year said mobile providers can "remotely install a piece of software on to any handset, without the owner's knowledge, which ...
2
votes
1answer
506 views

What is the mobile provisioning website supposed to do?

When I go to Settings → More... → Mobile plan it gives me a message "{mobile operator} has no known provisioning website". Digging into Android source code for WirelessSettings.java I found how URL ...
1
vote
0answers
61 views

Google Play store issue security breach

My daughter got an Samsung Galaxy 3 7" tablet for Xmas. She also got some Google Play gift cards. My husband put in a credit card to buy a game for her. The next day there were 4 games downloaded that ...
1
vote
2answers
231 views

Why does every application run as a separate user under Android?

If it's for security reasons, so that one application cannot harm another, why is it not like that in the desktop Linux distros? If desktop operating systems do prefer interaction between ...
7
votes
1answer
252 views

How to prepare myself & smartphone/tablet in the event it goes missing or is stolen?

I would like to know what measures or steps etc that should be performed, in order to protect & safeguard whatever "data" is on my Android Smartphone or Tablet, and indeed the device itself, in ...
0
votes
1answer
146 views

Mobile Lost and some one else is using the mobile with a different sim

I need help to track the person who has my mobile. My account(email) is still linked with google play on that mobile. I can install apps from my browser from google play account. Is there any app ...
3
votes
1answer
2k views

Is it possible to prevent the screen turning off when pressing the power button?

I run an app on my handset which really needs the screen to remain on for it to function properly. The app already seems to attempt to keep the screen on as the screen timeout seems to be disabled ...
6
votes
2answers
2k views

Google two-step authentication and Android lock screen

After many failed screen unlock attempts, the user is required to enter the Google account password. That's a good idea. But what if I enabled Google's two-factor authentication, and then entered the ...
0
votes
1answer
36 views

How i can protect my android from Master Key Vulneralability?

When i install apps ,that i take from my friends , it seems quite fishy , so how to check that the apps are trusted or not.
2
votes
2answers
174 views

Can an Android app circumvent its stated permissions?

I downloaded an APK from a 3rd party source (not Google Play). My question is that can this android app, although stated that it can only access my USB storage, could it also do other things (such as ...
0
votes
0answers
54 views

What is custom URI handler in android?

I came across the term "Custom URI Handler" which is a bad practice in android security. Can anybody please tell what is custom URI handler? What are the security issues raised by custom URI handlers? ...
1
vote
1answer
76 views

What is master key vulnerability in android?

What is master key vulnerability in Android? From looking at a few different sites, I understand that it is bypassing the authentication provided by signing of apps. How can I detect an app is ...
0
votes
1answer
686 views

How to remotely backup folders on stolen Android?

Most Android anti-theft apps can backup photos and text messages, but is there any app that can be installed through the web version of Google Play that can give me access to my folders and files to ...
-1
votes
1answer
133 views

wave hand & lock phone automatically

Is there any way to lock my Samsung Quattro (running Android 4.2) just by waving my hand upon it?
4
votes
1answer
2k views

Can a screen-locked Android phone be rooted?

By locked I mean a phone that has been locked with a standard PIN code, password or pattern. I'm not meaning to break into somebody's phone, merely wondering to what extent applying any of the ...