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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1answer
26 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 ...
0
votes
0answers
25 views

Web proxy for Android 4.2.2

I need to cut off access to Flash and HTML5 videos on several devices for a project. Is there any app like a proxy to perform this? If I could deny a list of webpages it will be perfect.
1
vote
1answer
18 views

Can I “Wipe data/Factory reset” a phone that doesn't even boot via USB?

I have a Razr HD (XT925 GSM) which suddenly shut down and can't be turned back on (pressing or long pressing the power button does nothing, nor does connecting it to the wall). I have a lot of ...
0
votes
3answers
39 views

How to know if an keyboard/input related app is safe to use

I am Vietnamese and I cannot type my language on my Android phone i.e. Samsung Galaxy S4 So I look for apps that help me to input Vietnamese. My issue is that I'm affraid the apps will bug me and ...
0
votes
1answer
16 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
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0answers
20 views

Block all root connections except to certain IP destinations using Iptables

I am using rooted Android 4.4.4 system. I want to block all the network connections associated by processes that run by root except to certain Ip targets. Something like this Block all network ...
0
votes
2answers
11 views

can an android device be in danger on a malicious site?

I accidentally went onto a site via Google images and went off after half a second, (the page had been quarter/half loaded. I accidentally hit the undo button and it opened again, and I closed it ...
0
votes
1answer
30 views

How do I remove Selfmite worm?

In June this year I experienced what I've found to be called the "Selfmite" worm on my Nexus 5 smartphone. On 24.06 and 29.06 it sent the message "Dear [contact name], Look The Self-time, ...
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0answers
13 views

Installed Comodo SSL certificate not showing in User in Trusted credentials [duplicate]

I am trying to install the SSL certificate for our exchange server. However although it says it is installed it is not showing under the User tab in settings --> personal --> security --> credential ...
1
vote
1answer
59 views

Encrypting Nexus 7 vs. screen lock

I read in this article that a non-encrypted tablet with only screen-lock on can have data read through USB. Is this really true for example for a Nexus 7 tablet? I mean - if I lock the screen you ...
2
votes
2answers
49 views

Allow login with multiple passwords

Is it possible to setup multiple accepted passwords for the login to Android? Or perhaps an alternative secure login. (Note: facial recognition and fingerprint does not count as secure, but an RSA/NFC ...
5
votes
1answer
110 views

How to prevent tracking or hacking of a used phone

The used phone's IMEI is clean, so it's not stolen. Looks like its seller did a factory-reset before selling it. But how do I make sure that it doesn't have any malware or backdoors, and that its ...
1
vote
0answers
35 views

Asus nexus 7 security settings has clearing credentials greyed out and can't handle device adminstrators

When looking at settings...security, I neither can clear credentials nor change device administrators. Clear credentials is greyed out and there is no option to change the device administration, who ...
-1
votes
1answer
32 views

How can I remotely wipe a stolen phone? [duplicate]

My phone have been stolen and I have many pictures on it, and secret things! How can I trash every thing on it through a Whatsapp message? I have not tired anything yet.
0
votes
0answers
118 views

Trust Agents in Android L Preview

When browsing to Settings - Security - Trust Agents, it says: No available trust agents. Is this function not implemented yet, or do I have to install an external application? I'm talking about ...
0
votes
1answer
43 views

GSM vulnerabilities

I heard that there are inherent flaws in the GSM protocol that make it possible for someone to impersonate a network operator and do all sorts of nasty things remotely, even if your phone is off. Is ...
0
votes
2answers
96 views

How to encrypt android device without screen lock? [duplicate]

I want to encrypt my phone to protect sensitive information. But I do not want to enter a password every time I pick up my phone. That seriously hampers the usability. Particularly because the ...
0
votes
0answers
30 views

Possibly a trojan named “SuperUser [UID]”?

SuperUser is prompting for access for something named "SuperUser [UID]" Why would the app SuperUser prompt for access for itself? Could it be a trojan with almost the same name as SuperUser?
0
votes
0answers
20 views

Tracking down which app makes HTTP requests [duplicate]

After configuring my Galaxy S4 (Android 4.4.2) phone to use a proxy server for debugging an app, I noticed that other apps on my device were making some suspicious HTTP calls. I would like to track ...
1
vote
1answer
163 views

Does the Play Store app verify the APKs?

Many people (including me) are downloading/installing/updating applications in public networks where we cant be sure of a secure connection without MiTM attacks, does Google's Play Store transmit the ...
3
votes
0answers
36 views

Does Android's implementation of SELinux's M.A.C. inhibit apps with root privileges from accessing other app's data?

Starting with Android 4.4 SELinux's MAC is enforced. Does this mean that if an app somehow can get installed and exploit the kernel to get root privileges, that MAC will still prevent that app with ...
3
votes
4answers
649 views

How can I save and protect sexy pictures sent by my girlfriend?

I'm traveling and my GF wants to send me some racy pictures. Of course I will accept that offer, but I need to save them on my phone in a safe way. My phone uses Activesync, so it's possible for my ...
1
vote
2answers
108 views

Heartbleed check for Android App

How I can check whether a particular android app is vulnerable to heartbleed or not? I don't want to use any third party app. I have seen ...
0
votes
1answer
252 views

How can I set the correct SELinux / SEAndroid policy for an App?

I am using the free SSHelper SSH server on my phone to get SSH access. However, the application is not behaving correctly under SELinux when set to Enforcing mode, but seem to be OK when using ...
0
votes
1answer
39 views

How can i hide an application?

I want to hide some applications from other people who have access to my phone but be able to get to the application whenever I want. I don't want locking. I need it to be not seen on applications ...
2
votes
0answers
81 views

Security options greyed out

There was a great thread on the same subject. Security options grayed out I am in the same situation where I need to keep the certificates on the android phone. And the ActiveSync certificates ...
0
votes
0answers
40 views

Cannot set any screen Security

I installed MIUIV5 on my Gionee P3 phone and I cannot set any screen security: no PIN, no password nor pattern. When it asks to enter a PIN and I tap continue nothing happens. I also checked the ...
1
vote
0answers
71 views

Lock screen security - reboot after X invalid PINs

I used following methodology to create a strong boot password on the phone, at the same time keeping a weaker PIN for screen unlock. Now I want to make sure that if someone tries to pick up a PIN, ...
0
votes
1answer
53 views

Transfer file securely android to pc via LAN

I need a file transfer from android device to pc server.Both of them is in same network.First i tried file transfer via adb.But adb is not secure connection. How do i securely transfer between ...
1
vote
1answer
36 views

PIN invisibility in android

I am using PIN security for unlocking the phone. When i type the PIN, a blue highlight comes to the pressed digit. How can i hide it? I am in Note 2 rooted with stock rom.
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 ...
1
vote
1answer
3k views

What is YGPS and why does it have every permission that's in the book?

I have a FairPhone One. From time to time I look in the system settings and the battery usage to see what is draining the battery. I've disabled anything I don't use, including a number of builtins ...
0
votes
2answers
69 views

Network security in Android

My question is quite simple. I've been digging around in the subject for quite a while now, but I can't really get a hang of how it works. Scenario: I use Facebook on my phone to chat with some ...
0
votes
0answers
20 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
0answers
31 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 ...
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?
0
votes
1answer
353 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
73 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 ...
1
vote
0answers
132 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
40 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
0
votes
1answer
27 views

Seeking alternative to Andoid File Transfer utility

Need usb alternative to Android File Transfer for Mac. Problems: 1. no search capability 2. Cannot report size of files. 3. No route to send problem reports to developer. Reasons for not using ...
29
votes
2answers
2k views

How does the Heartbleed security vulnerability affect my Android device?

The "Heartbleed" vulnerability in particular versions of OpenSSL is a serious security issue which allows malicious servers or clients to undetectably obtain unauthorized data from the other end of an ...
3
votes
2answers
256 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
77 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 ...
1
vote
1answer
28 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 ...
0
votes
1answer
120 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?
0
votes
0answers
23 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 ...
1
vote
0answers
165 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 ...
0
votes
1answer
37 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?
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. ...