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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0answers
6 views

How to troubleshoot SELinux issues?

On standard GNU/Linux computers, SELinux comes with a set of tools allowing the administrator to troubleshoot permission issues. Such tools allow to: Temporarily switch a single domain in ...
-2
votes
0answers
22 views

Can anyone recomend a free trusworthy secure browser for android? [on hold]

So I trust the AOSP browser but it's not the greatest security wise, It only updates vulnerabilities with the system update which manufacturers don't always do . Chrome is updating regularly but I ...
6
votes
3answers
473 views

Any security difference between root based firewall (AFWall+) and non-root based ones (NetGuard)?

What are the technical differences between root based firewalls (like AFWall+) and non-root based firewalls (like NetGuard)? Is there any impact on the security effectively provided by such software? ...
0
votes
0answers
19 views

How do i set xprivacy to restrict the camera access(or camera permission) by other apps?

I use Xprivacy to set permissions on my Samsung phone(Gt-i9060L, android 4.2.2). What permission associated with an app should be checked in xprivacy to restrict camera access by that app?
0
votes
0answers
24 views

Log what an application does and accesses

I'm a bit paranoid about the permissions that certain applications require to work on an Android phone. Specially the "Access to your storage" permission. What I'm scared of is if an application is ...
0
votes
1answer
17 views

Virus on an Android Phone from viewing Goolge Images

so earlier this evening I browsed through some playboy images on Google Images. I have to do a project on Women as a Sex Symbol. Now I just viewed the Images on Google Images without clicking any ...
0
votes
0answers
9 views

How banking Apps secure there data on android? [closed]

I am newbee to (android + JAVA). But expert on C, C++ on Linux platform. My Question: 1. How secure is Java on android ?? 2. Which programming Languages do banking apps use on android ?? 3. I have ...
0
votes
0answers
12 views

NFC activated in the background without me knowing?

Instantly when I got my phone, I dissabled NFC because I don't need it and it eats power. But recently, I have seen that it is enabled without me knowing and I discover it randomly when I open the ...
1
vote
3answers
23 views

Nexus 6P - Fingerprint unlock setup

I would like to setup fingerprint unlock on my Nexus 6P. I believe I have it setup correctly, but when I go to unlock the phone by putting my finger on the sensor, it vibrates once then makes me put ...
0
votes
1answer
58 views

Is a 'Send security reports' notification legitimate? Note 4, 6.0.1

Samsung Galaxy Note 4 (Verizon SM-N910V), Android 6.0.1 After a sudden reboot, my phone displayed a few system notifications in Chinese, and is now displaying a new notification (screenshot attached)....
2
votes
0answers
49 views

What is tested in the Google Play Pre-Launch Security Report?

The Google Play store includes a pre-launch security scan in Pre Launch Report -> Security. I am trying to find out what it is actually testing for. Are there any resources that get into detail on ...
4
votes
0answers
40 views

Do permissions apply across users?

If I create a secondary user and install an app while using the phone as that user, will the permissions for that app carry over for the primary user? For example, let's say I have a primary user, ...
-1
votes
0answers
18 views

Anti-theft application [duplicate]

So yesterday my cellphone was stolen so from now on i would like to be protected. Are there any tracking apps that won't get unistalled when the thief hard resets the phone?
0
votes
1answer
13 views

Do Android apps store data in clear?

As in the title, is there any chance someone with Android phone (5+) could access private app's data via USB storage? In other words, **do apps encrypt data by default? **(e. g. Google Apps but ...
1
vote
1answer
53 views

Adware keeps installing itself

I have somehow got my phone infected with an adware by the name 'Android Communication Sync' ('com.foreign.provider'). It isn't visible in the apps browser (doesn't have any icon) and causes ads to ...
1
vote
0answers
33 views

How can I tell if someone is getting into my device remotely

I think someone is spying on me. How can I tell if someone read my messages for pink my phone calls or downloading pictures to their equipment or from cuz I have Android IP address pop up on my Google ...
1
vote
0answers
43 views

Android root sandbox?

On Windows I would use a sandbox to easily see file-changes made by shady programs to see how it would affect my system. What are easy methods (except decompiling and looking at the actual program ...
1
vote
0answers
69 views

Checking activity of unknown user on my phone

Yesterday I took my new phone to a mobile service shop... I wanted them to put a protection layer on my display. I have a pattern lock on my phone so I just put the display to sleep and gave it to him....
0
votes
0answers
49 views

Implications of an unlocked bootloader

I've been using android for about 5+ years now. Each of my phones usually rooted and rolling a custom Rom. But in the last one year or so, Especially the way in which android N is headed, it feels as ...
0
votes
0answers
42 views

How do I decode gzipped packets?

I am trying to do some analysis on a mobile app to see what data is being sent to the owner's API. I thought this would be a simple case of installing "Packet Capture" and viewing the data, however it ...
1
vote
1answer
39 views

How can I limit the number of fingerprint attempts before fallback to other login type?

I've got a Nexus 6P and would like to reduce the number of allowed failures before it blocks fingerprint as an allowed login mechanism - according to https://support.google.com/nexus/answer/6285273 ...
0
votes
1answer
55 views

How can I securely install an older version of Chrome on a device that won't support newer versions?

I have an Android device that runs Android 4.0.2 and can't be updated any further. When I tried to install Chrome from the Play Store, I was told: Your device isn't compatible with this version. ...
0
votes
0answers
18 views

SELinux policy loading and enforcement on Android

In the most recent versions of Android, SELinux enforcement is enabled in the kernel and is static, but how can this work before a policy has been loaded? Is the policy embedded in the kernel? If not, ...
0
votes
0answers
61 views

How do I remotely log-out my Android device without reporting it as stolen?

Today I sent my phone in for servicing but I forgot to log-out/disassociate my account beforehand. Is there a way I can do this remotely other than: Changing my Google password---but it's been less ...
0
votes
0answers
27 views

Internet Safety on Phone. I really don't understand

I'll make this brief, and I apologize in advance for my ignorance. If you click a link and it redirects you to somewhere that is not the intended target, is this a major concern? This recently ...
1
vote
2answers
56 views

aptoide How to report potential abuse without becoming a member?

The aptoide store is an alternative platform where you can get android apps. I found an app on aptoide store via google that has a size of 3.3 MB. The same app with the same app-version in fdroid ...
0
votes
3answers
43 views

Entering very long Google password during setup

If I have a new phone how can I enter my Google password in a secure manner during setup without having to type it (it is VERY long at over 30 random alphanumeric characters and a pain to type). ...
0
votes
0answers
48 views

Can info still be accessed when device is locked?

If my device is lost/stolen and I lock it remotely, can someone still access my info by connecting it via usb cable to laptop and opening my files?? Or does lock completely freeze ALL data on phone?...
0
votes
1answer
130 views

Android AccountManager security

I've asked this question before, but got no suitable replies, so here I go again. How does the Android AccountManager which is used to store your Google, Facebook, Twitter, etc... usernames and ...
0
votes
0answers
24 views

Work Gmail connected to Android - can employer access mobile data?

Today, my Sony Xperia Z3+ (Android) suddenly showed a notice about performing an "Authentication" and I noticed that have been sent an email about the "MyXperia Protection" to both, my private Gmail ...
0
votes
0answers
113 views

“The certificate was not installed” error when installing a CA root certificate

I am developing an Android mobile application and want to test that the application behaves as expected. I am using the OWASP ZAP intercepting proxy for this purpose. The application communicates to ...
1
vote
1answer
83 views

Android for work with KNOX 0x1

I have a device supported by Android for Work (Samsung Note 4, Android 6.0.1) but the security policy will not install saying "there is a custom OS installed". Device security status is "Official", ...
0
votes
0answers
263 views

Pattern Lock removal via Android Device Manager not working (NOW FIXED)

The black screen saying "Locked by Android Device Manager" is visible, but there is no input space for a password. I was unable to correctly enter my pattern (which I put right after installing ...
0
votes
1answer
176 views

Increase 30 seconds lock time after incorrect attempts

If I try to unlock my Samsung Galaxy A3 (Android Version 5.0.2) with an incorrect password 5 times I have to wait 30 seconds before I can try again. I want to increase this waiting time: how can I do ...
0
votes
1answer
116 views

How can I prevent installation of NEW applications on an Android 5.1 device, but keep auto-updates of existing applications?

We will soon have to provide a phone to a person who is obviously not familiar with IT stuff at all, and not capable of learning anything about information security, etc. (and probably not capable of ...
3
votes
2answers
126 views

How to prevent two-factor code being exposed on lock screen in messages notification?

On Lollipop, the text message notification on the lock screen includes some of the content of the text message. For two-factor code text messages, this will display the two factor code to anyone ...
1
vote
0answers
24 views

How to Have 2nd Step Verification for Making Calls in 6.0?

I would like to use 2nd Step Verification always for Making Calls. I can use a second device to get those codes; etc second Gmail account; or a similar encryption device as used by banks. I do not ...
-1
votes
1answer
100 views

Disable toast when screen is pinned in Android

When passing my phone to someone, I pin the screen for safety reasons. Is there a way to disable those ugly toasts which keep popping up and giving them a gist of what's happening?
0
votes
1answer
68 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 ...
0
votes
0answers
14 views

When is the secure element initialized?

I am new to SE and Global Platform. As far as I know from the spec, when you want to do something, you need to finish the external authentication first. Since the authentication requires a S-ENC key, ...
0
votes
1answer
165 views

What are all these security certificates on new phone?

This is a new T-Mobile Samsung Galaxy S7. Is it normal to have all these certificates? Many look dodgy. Image resized. Click to see full-version
1
vote
1answer
56 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
votes
1answer
56 views

What application is “using my screen” with some kind of overlay? [duplicate]

I want to turn on accessibility permission to Greenify app. But I'm unable to click "ok". I also have Twilight and since some security built in the system, I have to disable, stop or uninstall the ...
0
votes
0answers
308 views

Problem with some Apps trying to install

I have a problem with my Android 5.1 When the screen is locked, and I to unlock it, a popup shows, that some unknown applications are trying yo install. I have formatted the mobile twice, but it ...
4
votes
2answers
3k views

Apps trying to install in background

I recently wanted to install a metronome app, so I downloaded one from the Play Store, but in the "install" step nothing happened. The app just wasn't there. I installed another one and forgot about ...
1
vote
0answers
56 views

Android 2.2 security in 2016

I have an old Samsung Dart t499 that I would like to give to my son for simple texting and phone calls. Assuming that (1) we don't install any apps and just use the ones that came by default on the ...
-1
votes
1answer
36 views

When an app wants permissions, is it isolated from others?

When an app asks for permissions for my media folder for example, does this mean it can access anything in my media folder? Are apps isolated to only save/read from a subfolder inside my media folder ...
3
votes
1answer
97 views

Secure Android browser

The desktop versions of Firefox and Chrome use Google’s Safe Browsing service to warn the users about known bad websites. Looking at a Samsung handset running Android v5 I noticed that neither the ...
0
votes
0answers
50 views

How to Forget All App Passwords

I haven't been able to find any sort of app or topic on here which allows a device to stop remembering passwords for apps, such as Facebook, Snapchat, Reddit, etc. I have strong passwords, and I ...
0
votes
0answers
241 views

Unable to send S/MIME Encrypted Emails; Galaxy S6 Edge/Marshmallow

This refers to the Galaxy native email client running on Android 6.0.1 on a Galaxy S6 Edge. I have successfully added my Comodo SHA-256 Client Authentication and Secure Email certificate to an Office ...