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
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1answer
11k views

How to remove an account from Google Hangouts?

I logged in to Google Hangouts using an account (which is NOT the account I use in play store). But now I cannot remove it. I can sign out, but to sign back in, it does not for the password and ...
8
votes
2answers
816 views

Formatting Android storage “zero out” technique

I have an Android mobile (Galaxy S3), and am really worried that my corporate information will be retrieved after a reset. I've seen shared video showing it is possible to recover data after hard ...
0
votes
0answers
286 views

Adding more than 3 fingerprints in Galaxy S5 by swiping different fingers when adding a new fingerprint

On the Samsung Galaxy S5 one can bypass the 3 fingerprint limit by swiping different fingers when adding a new fingerprint. Can this cause any security issue?
1
vote
0answers
64 views

Fast switch between lock screens?

I know there is "No Lock Screen", which is a great musthave app that I have been using for months on all the devices I own. My friends/relatives love it too. My only problem with it it's that I ...
1
vote
1answer
62 views

how to disconnect asus usb connection from eclipse

im a beginner in android apps mobile. i already launch it in my phone asus T00Q, but i have problem to disconnect the usb from eclipse. some said we should put the mode on charging mode and not Media ...
2
votes
3answers
57k 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 ...
16
votes
4answers
5k views

Where to find a PIN lock screen that scrambles the keypad on every use?

Is there some way to get a lock screen whose PIN pad changes number layouts every time it's used? It seems like a very basic way to thwart smudge attacks and yet my (broken?) google-fu can't find any ...
7
votes
1answer
320 views

Unsafe certificate protection in Android?

Maybe I'm wrong. If so, please let me know. Here is my question. I've followed the instructions here and installed my personal certificate stored in a pfx file (PKCS#12) in my Google Nexus (ICS ...
4
votes
3answers
15k views

“Account unlock” when not connected to internet?

I have a Samsung Galaxy Y mobile phone. I see this screen when I press "Forgot Password" in the pattern lock screen that comes by default with the phone: My Question is: How would my account be ...
1
vote
6answers
9k 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, ...
0
votes
1answer
188 views

Possible to change SIM card PUK on Android device?

On my Samsung Galaxy SIII, one can go to Settings -> More -> Security -> SIM card lock -> Set up SIM card lock -> Change SIM PIN to change the default PIN that came with the SIM card. ...
2
votes
1answer
133 views

Undesired download of Baidu Browser

new Android user with the world's most low end tablet, Azpen A727. I'm enjoying learning about Android and have killed off most of the bloatware...but twice now "Baidu Browser" has been downloaded ...
3
votes
1answer
419 views

What is the setting in xprivacy to access the microphone?

I use xprivacy to set all permissions on my phone, but I accidently forbid the tuner app to access my microphone. Which setting do I have to enable?
0
votes
0answers
183 views

Disabling/Changing PIN on Android device: where are the disabled flag and new PINs stored (SIM or internal storage)?

On my Samsung Galaxy SIII, one can go to Settings -> More -> Security -> SIM card lock -> Set up SIM card lock -> Lock SIM card` which displays a check box which can be used to configure the phone to ...
0
votes
1answer
156 views

execve permission denied under /data [closed]

I have met a weird problem on a Samsung Galaxy Note 2, running Android 4.3, with an origin-forgetton rooted rom. getenforce returns "Permissive", so selinux is Permissive. cat /proc/self/status ...
0
votes
1answer
82 views

Does rooting a phone expose the phone to security risks? [duplicate]

I have a very simple question. If I root my phone, will it be easier for malware to run on my device and cause more damage (due to the nature of the extended set of operations that applications with ...
0
votes
0answers
137 views

Recovering lost or stolen phone (security and feasability considerations)?

I am trying to understand a little bit about security in case my phone goes stolen. I have read that even if a phone is stolen and the SIM card is removed, it can still be possible to find your phone ...
3
votes
1answer
158 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 ...
7
votes
3answers
5k views

How to delete a specific file in Android so that it can't be recovered?

From my experience a file deleted from a computer filesystem can often be recovered unless it is overwritten with a special program (that's usually called "shredding"). Is an Android-based HTC ...
0
votes
2answers
507 views

How is my friend bypassing Applock application

I'm using moto x 2nd gen, I recently installed applock to keep some apps private but one of my friend knows a way to bypass the password and even change it, he did the same even with pattern lock. He ...
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 ...
22
votes
3answers
6k views

What are the security disadvantages of rooting an Android phone?

I know there was a discussion previously BUT they didn't talk about security. E.g.: if I root my phone will all my apps run with root permission? Related: Are there any risks to rooting a device?
0
votes
1answer
3k views

Lollipop: override security policies (specifically lock screen/Exchange/Office 365)

When I used Android 4.4 (KitKat) on my Nexus 5 I could ignore certain security policies such as a requirement to have a PIN code to unlock the lock screen. After upgrading to Lollipop and the move of ...
7
votes
3answers
1k views

Can my Android phone be hacked without installing permissions?

After reading this article ( Kaspersky smartphone report ) this got me wondering. Obviously if I install a dodgy app through Play Store or directly from a website, that can be dangerous, however if I ...
21
votes
5answers
9k views

Securing a young child's tablet

My wife has decided to get the kids a set of android tablets for christmas. These are Coby Kyros 4GB wi-fi only models. The kids are ages 6-10 so I don’t particularly want to let them have free ...
8
votes
4answers
2k views

Biometric-security lock-screen?

Is there a way to apply a biometric lock (as in, a look screen) to an Android device? e.g. the unlocker has to pass a fingerprint / retina / voice scan. I've read about startup companies and general ...
4
votes
3answers
23k views

How can I disable the screen lock password in lollipop?

I have enabled password protection on the lock screen on my Nexus 5 Lollipop device: After enabling password, I can't seem to be able to cancel it. Any idea how to go back to None or Swipe?
1
vote
0answers
179 views

How to root the HTC Desire 300 (also known as Zara Mini)

Okay please forgive me if this has already been answered, I've read a few questions on here but I still don't understand. Firstly, I'm not a "techie" or anything like that, so some of the really ...
8
votes
5answers
5k views

Remotely brick a stolen phone

If my phone is lost or stolen, can I remotely and permanently brick my phone. This way, not only is my data secure, but the resale value of the phone plummets to zero. Tangential question: can apps ...
2
votes
0answers
286 views

How CF-Autoroot works?

How CF-autoroot Theoretically is able to root android devices ? I'm wondering on what technics it use to run su ? Do it use a custom/patched Linux kernel ? or it is based on local root exploit ? I ...
1
vote
0answers
126 views

Automatically verify signature on all Android Exchange emails

I work in an office where everyone uses a digital signature on their emails. I just bought a new LG G3 with 4.4.2 KitKat and whenever someone sends me an email that is signed, it shows up with a body ...
3
votes
1answer
185 views

Pin unlock without showing numbers

When you type your pin into the Android lock screen, it does the usual mobile password field thing where it actually shows the last character you've entered. Is there any way to disable this on ...
2
votes
4answers
2k views

Securing Memory Card?

What should I do so that the Memory card in my phone works only in my phone? Also, I should be able to connect my mobile to a PC through a USB cable and completely see/edit/organize the data on my ...
19
votes
2answers
24k views

Bypass “Swipe up to unlock” on Android Lollipop lock screen

I recently flashed my Nexus 4 to Android Lollipop using the factory image. I have set a pattern lock for unlocking the device. But whenever I turn on the phone, I have to click on the little lock ...
0
votes
0answers
29 views

Where is Face Unlock?

I installed Titanium Backup and found Face Unlock (Settings) in the file list but I can't find it anywhere on the phone.I checked the settings menu and Security but I still can't find the interface to ...
1
vote
1answer
608 views

forgot my google account password

someone used my phone GT-S5300 and had wrongly tried the unlock pattern many times and now it is asking me for google account but i have forgotten my password. pliz suggest me how can i get my ...
0
votes
2answers
376 views

How do I re-enable swipe to unlock?

I recently encrypted my Android 4.4.2 device (S4 Active) and have now unencrypted it. However the only options I still have to unlock my phone are PIN and Password. When I attempt to change it it now ...
0
votes
0answers
60 views

Security of Android cryptography in versions < 5.0 against government agencies

Recently, both Google and Apple announced their new OSes encrypt the device by default. This caused a lot of complaints from government agencies. Let me quote an article ...
0
votes
1answer
46 views

Can a locked phone's data be accessed when being repaired?

I had an HTC One S device which suddenly turned off and refused to start. On giving to the service centre, it turns out the device needs replacement of an item 'PCBA-MAIN BOARD WITH SKU ID MS' which ...
1
vote
1answer
479 views

Does rooting phone affect online banking security? [duplicate]

I'm thinking of rooting my android phone (HTC Desire 300) and was wondering if doing so would affect the internet security with stuff like online banking. Is it still secure to do my banking on a ...
0
votes
0answers
53 views

Nmap my device and find many open port, is these secure?

I use nmap to scan the open port of my android open port. To my surprise, the list is long ( attached below ). Is this normal? Are all these secure? I am using Android 4.4. The rom is cm11. PORT ...
3
votes
1answer
5k views

Locating stolen phone after factory reset

I assume any reasonable thief will wipe the phone as soon as possible, thus removing any tracking apps and user accounts. I there a method to track the phone any way? A possible method is to use a ...
1
vote
0answers
34 views

Where do you publish information about a vulnerability you have found within android?

I found a small vulnerability within the default web browser, here is the ticket. Submitted last year. Issue 42647: Android Web Browser, JavaScript Popup Bug. Tested on 11 Jan 2013. ...
1
vote
1answer
112 views

Rooted phone, but can't pass “Install” dialog

I am running Android 4.4.4 with the LiquidSmooth ROM and SuperSU. All these components work flawlessly, as far as I can tell. I am also able to use TitanicBackup (to demonstrate Root is working). ...
14
votes
3answers
3k views

Is there any way to erase personal information from my phone that has already been stolen?

My phone has been stolen. I do not want the thief to have access to any of my personal information such as calls, texts, and information saved in the phones contents. Is there any possible way I can ...
2
votes
1answer
226 views

How can access on an android device be restricted to applications or widgets on the home screen only?

This is a rooted Nexus 7 with 4.4.4 (factory image from Google). I'd like to restrict access to anything that's not on one of the home screens. Apps and widgets on one the home screens should be ...
0
votes
2answers
763 views

Does encryption, factory reset, encryption make a safer used phone?

I recently purchased a used Moto X. I know the person I bought it from so I'm not terribly worried but here is my idea to shore up the security on a used device. Don't put in your SIM card or log ...
0
votes
0answers
129 views

Control Mobile via pc using USB (No URL Control)

I want to control the mobile via pc using usb cable, I found out lot many solution like Droid@Screen & AndroidScreenMonitor etc., but this is an one way communication am not able to control from ...
0
votes
0answers
56 views

How to obtain crypto header and footer from Nexus 5 Android 4.4

I'm interested in how to find the crypto_header and crypto_footer for disk encryption on a Nexus 5. A lot of articles have them for specific devices and I was wondering if there was any information on ...
0
votes
2answers
562 views

.htaccess protected HTML5 videos not playing

I have videos in a directory which is protected through .htaccess. I want to deliver the videos by means of the <video> tag. Here is an example: protected video Use test/test to login. ...