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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0
votes
0answers
26 views

Samsung-installed apps updating daily

After installing the wonderful DCentral 1 application, I see that AllSharCastDongle and FWUpgrade try to update themselves daily. How might I prevent these two Samsung-installed apps from ever running ...
4
votes
5answers
564 views

Erasing SD Card contents and personal data

I have an SD card in my Droid Global or Droid X, not exactly sure which model. I go to the files and click on the SD card instead of shred files and delete all of its contents. I then go to Privacy ...
0
votes
0answers
19 views

Antivirus for Android? [duplicate]

Ever since I got this phone, I have had Avast installed. I'm just being a little picky, but I'd like to know if antivirus software is worthwhile, or even necessary at all, on Android. For your ...
0
votes
1answer
25 views

How to protect data after unlocking bootloader?

I am to root my Nexus, so I have to unlock it first. But I worry that once done, some one may boot with customized recovery to copy or modify my files. Any idea?
1
vote
1answer
856 views

How secured is password protected Memo?

I have Samsung Galaxy Star (GT-S5282) with 4.1.2. I wanted to store my bank and credit card information in password protected Memo. How secured is password protected Memo? Is there a way to crack the ...
0
votes
0answers
29 views

Data over mobile network switching on behind my back - what could be doing it and how to stop?

Alcatel OneTouch 983, Android 2.3.7 I normally have "Enable data access over mobile network" switched off so as not to drain my phone credit, only switching it on when I want to do something quick on ...
4
votes
2answers
2k views

What is this Google Settings app that installed itself on my phone?

Today, all of a sudden I saw this app in my Samsung Galaxy Y mobile phone: I am talking about the app named "Google Settings" I uninstalled it immediately only to find it installed again a few ...
0
votes
1answer
233 views

Securely wiping a phone with a broken screen

I have a Samsung Galaxy S3 with a broken screen. The screen does not respond to any touch and does not display anything at all, it is black at all times. CyanogenMod 11 is installed on the device. I ...
2
votes
1answer
72 views

How can I secure my pictures, videos and other files stored on my phone?

I am looking for a way to protect every sort of data that is saved in my Android phone from being stolen. I have done some research on Google Play, the only app I found with all the features is Folder ...
9
votes
6answers
3k views

App/shortcut to quickly change screen lock type?

Two scenarios: I'm at a "trusted" place, and don't want to enter unlock password/pattern all the time I'm at an "untrusted" place and want my phone to be password/pattern screen locked is there ...
1
vote
0answers
123 views

How to enable certificate revocation check?

I'm using Chrome both on my desktop and my Android. Following this thread (https://www.cloudflarechallenge.com/heartbleed, there is a link inside), I checked my desktop browser and it appears that its ...
-1
votes
1answer
37 views

PGP keys on Android

How do I set up a PGP key on my Samsung Android 4.1.1 tablet? No idea what I'm doing so please give step by step simplistic instructions
12
votes
5answers
2k views

How to know if a side-loaded app is safe?

How can we be assured that the APK of an app that we are downloading from a website is safe to install on our Android phone? Is there a way to know that the downloaded file is safe? Is there an app ...
3
votes
2answers
251 views

Is Android susceptible to OpenSSL vulnerabilities? [duplicate]

There has been a big vulnerability discovered in OpenSSL today, are android applications affected, and what can we do to get a secure version? What about people with older devices (such as the HTC ...
2
votes
0answers
65 views

Android application firewall - interactive prompt confirmation for connections

I'm thinking of developing application, or probably extending AFWall+ app What I'm missing on Android is possibility to confirm each connection from each application, simply blocking the application ...
4
votes
3answers
6k views

How can I disable or password protect my device's 'factory reset' function?

Is there any way to prevent a factory reset, like password protection? I would basically like to protect my phone from resetting if it gets stolen.
1
vote
1answer
27 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 ...
10
votes
4answers
11k 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
0answers
21 views

samsung galaxy s3

My Samsung sign-on screen keeps appearing at various times. It started after updating the phone. I updated it because of a problem with intermittent flashing (mentioned elsewhere on Android ...
0
votes
1answer
101 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
145 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
4answers
4k views

Does encrypting an Android device add any real security benefit over a key-lock?

Would encrypting my Android device make my data any safer in case of theft? It seems to me that since the encryption key necessarily is identical to the PIN code or password used for the key-lock, ...
2
votes
2answers
9k views

How can I stop being redirected to the App Store/Google Store by dodgy ad-scripts?

There are a load of sites that do this now, and it's really annoying: I visit a content site on my Android device. 10-15 seconds after loading starts the site hangs for a few seconds. Google play ...
1
vote
2answers
69 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
36 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
2k 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
53 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
320 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 ...
14
votes
2answers
4k views

What do the permissions that applications require mean?

When installing an application, the application lists permissions that it needs to perform its functions. I am creating this list of the the system defined permissions and a description of what ...
0
votes
0answers
159 views

Attempts to bring up Settings results in a Crash

My device is a Galaxy Tab 7". I previously rooted it, and installed Avast Mobile Security and Anti Theft on it. I gave it to a friend to use for a while and now, whenever I try to open Settings, it ...
8
votes
3answers
3k 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
289 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
116 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 ...
1
vote
4answers
774 views

Find what app is causing popups, NOT in notification bar

I am getting these popups regularly. They do not appear in the notification center so I can't find out what app is causing them. The only app I can think of that I have installed recently, I have ...
0
votes
1answer
346 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
54 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
55 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 ...
3
votes
5answers
3k 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
279 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
102 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
9k 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
2k 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
52 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
340 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 ...
20
votes
1answer
12k 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 ...
20
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 ...
6
votes
1answer
105 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 ...
22
votes
2answers
11k 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 ...
53
votes
6answers
18k 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
183 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 ...