Questions tagged [security]

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 at http://security.stackexchange.com/questions/tagged/android

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9 views

Can non-current-keyboard app (non-current-input-method) record my keystrokes (keylogger)?

I don't really trust the mobile manufacturers in my place. The first thing I bought a new phone is installing a trusted input method app (keyboard app) and switch to that keyboard app. But I am ...
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Prevent user from installing any applications

I have Galaxy J1 smartphone with OneUI and I have to prohibit installing any applications on it. I tried disabling appropriate activity in PackageInstaller, but that can be bypassed with Factory Reset ...
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Is my phone hacked?

This is my first post on here so I am sorry if I do something the wrong way. Anyways my problem is I have a Snapchat account on which I do some Not Suitable For Work things. And I met a guy online who ...
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Security on a Nexus 6P purchased on Ebay

I purchased a used Nexus 6P on ebay to replace my current 6P, because the camera has failed. The seller indicates that the new phone has been factory reset, but I'd like to be sure that there is no ...
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1answer
19 views

Why does Google Chrome on Android has so many permissions?

Just found out through a connection tracking app, that Google Chrome on my Android 9 has so many permissions granted . Permissions like :- Pair with Bluetooth devices Access Bluetooth settings Read ...
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Here GPS tracking

I have been lured into the world of FOSS apps, apps using known trackers and loggers, DNS, and firewalls. My phone is rooted via Magisk. It's a Huawei P20 Lite. Running Havoc 2.9 and Android 9. So I ...
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28 views

Does android keystore and “Clear data” of the “Settings” app are related?

I am working on a system app where i am storing some sensitive data in EncryptedSharedPreference. I realise that my app is not working as expected if I do clear data of android Settings app. That is ...
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1answer
51 views

Does the latest Android release is secure against the ADB vulnerabiliy?

I have two smartphones running Android 10 and 8, The ADB is enabled for many proposes. Generally some vendors have been shipping products with Android Debug Bridge enabled. But it seems that enabling ...
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32 views

What makes the android boot sequence different from Windows boot sequence?

I've just studied the Windows boot process (theoretically) and now I want to compare the Android's boot sequence with the Windows boot sequence. One point I've found is that in Windows there is BIOS ...
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24 views

secure custom ROM for galaxy A50

I have a mallware infection on my A50 and I was going to flash a stock ROM back on it. On the other hand, there might be other options that give more functionality or security. Perhaps even a custom ...
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Disabling lock screen app in a Oukitel WP5 Pro afr

A friend just bought a Oukitel WP5 Pro powered by Android. It's up and running but he doesn't want the lock screen. In security it does not give the option "none". I went into app manager it ...
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How can I make my android turn the screen on and unlock when I touch the screen?

I want to mount an android tablet on the wall, and want it to turn the screen off when not in use, but turn back on whenever you tap the screen (similar to waking up a computer while jiggling the ...
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How do I hard reset/ factory reset my supersonic SC-74JB 7 inch tablet with no physical volume button on

No physical volume button Forgot security password to get into my supersonic SC-74JB 7 inch tablet that you need after you turn on the tablet
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Stop user from changing Chrome settings on Android

I'm trying to find a way to stop users from being able to change Chrome's settings on an Android device. The main focus in not letting people turn on saving passwords, as multiple people share the ...
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Certain My phone is being monitored

I have a Samsung Note10. I have had lots of weird things happen such as numbers being called by itself, one time with my hand holding it and nothing being pushed. Also twice in a week settings in a ...
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27 views

How to prevent the use of a phone as a second-factor security confirmation

Mobile phones are frequently used to read email and access secure online accounts. So the average phone contains both the account signon usernames and the associated passwords. Email has been used ...
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Is there a way to log all access to the phone include a photo

Is there a way to setup an android phone so that it logs all access and takes a photo each time it's accessed?
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1answer
61 views

Compromised phone

I have a stalker who has managed to intercept texts and maybe calls. I have changed phones, providers, and phone numbers and they always get in. I also believe my locations are being tracked. So my ...
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34 views

Erase content of stolen phone, but thief has my PIN

My phone was stolen. I tried to erase it but the only option was set up erase. The problem is I believe the person that has my phone also has my PIN which would give them access to the phone. I know ...
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47 views

What commands should I use to block three different ranges of ports, or to block all ports except two?

I'm new to iptables and I want to block some ports. I'm using a rooted Android phone. What commands are used to block three different ranges of ports or block all ports except two? I don't want to ...
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39 views

Firefox Android with password storage

Can you suggest a good solution how I can store my passwords secure with Firefox for Android? Firefox sync has no "cloud storage" which means I have no cloud backup. Keepass2Android with ...
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32 views

Why does LineageOS 17.1 on Android maintain 2 mac addresses?

I understand that LineageOS randomizes the phones wifi mac address - and thats fine. But on analysis of the traffic from the phone, it seems to have 2 mac addresses simultaneously, and both are on the ...
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34 views

Samsung Galaxy Note 10+ 5G - cellebrite mobile forensics data extractions - locked with pattern

I've got a locked Samsung Galaxy Note 10+ 5G (running the latest android 10 and patches) The phone is locked with a pattern (unknown) What are my chances of any data extraction with cellebrite or ...
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28 views

AOSP x86 adb secure

I'm trying to build a custom ROM with secure access via adb. My goal is to secure the android image so that it can only be accessed with a certain adb RSA key pair. When I build AOSP with 'user' ...
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27 views

Detect which type of SSL Pinning is being used on Android Applications

Is there a way to detect what the Android Application is using as SSL Pinning. Whether it is certificate Pinning , Public Key Pinning or Hash Pinning ? I am doing a study on local Android Applications ...
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1answer
95 views

With Android, does a factory reset truly reset the device to the same as it was when it left the factory (unlike an iPhone)?

When you reset an iPhone, my understanding is that the device does not truly get reset to how it was when it exited the factory. What about with an Android device? Does performing a factory reset on ...
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91 views

ADB - bypass lock screen

I am using Lineageos 17.1 on the FP3 (the phone is not rooted). I do know my screen pattern code (it is a 6x6 pattern), but I am not able to enter it correctly, because I disabled that the pattern is ...
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13 views

Prevent Wifi and mobile broadband from being turned off when phone is locked

On my old android 10 phone (an LG) if I pull down the shade when the phone is locked and try to turn off wifi or mobile broadband, it asks me for my password. My new phone doesn't do that. Is that a ...
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61 views

How to determine if an android application uses Trusted Execution Environment (TEE) and Secure Element (SE)?

I have gone through questions One and Two. But still I have an additional question. How do we find out that an android application uses Trusted Execution Environment (TEE) and Secure Element (SE). ...
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40 views

Can applications access users information without having permissions?

When i scan apps with Am pre_release Some apps have this access, which is in the photo. My question is, what is this access?  Can you explain about it first?  And in the second place While camera ...
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38 views

Can applications access users information without having ( camera , microphone or etc) permissions?

I recently became very suspicious of apps.  And a few questions have occupied my mind, please help me Is there any way that an application can access the camera without having the camera permission ...
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205 views

Are there any issues with allowing the KLMS Agent app (part of Samsung KNOX) to be restricted by Data Saver?

I use the "Data Saver" feature to extend battery life and to prevent/reduce apps from accessing the internet when the phone/tablet is sleeping and when they are not supposed to be running. ...
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44 views

How to determine default enabled permissions for for pre-installed applications?

Many Android apps that are pre-installed by manufacturers have extensive and intrusive requested permissions. When looking at the permissions of each app via Settings > Apps, some of the ...
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2answers
274 views

What are all these Google internet hosts (domains) and why is stripped-down Android connecting to all of them?

Technology users are faced with a challenge: Allowing our tech devices to work without them invading our privacy. Obviously choosing products carefully is a critical step. Unfortunately, the two main ...
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26 views

Non-native network interfaces

I have these strange non-native network interfaces popping up on my phone... and mind you, this is after factory resetting my phone 5 times in a row. Can anyone help me make sense of these? Instead of ...
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1answer
146 views

Can an app installed from the Google Playstore install another app with different permissions?

I installed an app for custom notifications from the Playstore. The app requires sensitive permissions (camera, contacts, and storage), but has no network access. When I selected a setting the app ...
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1answer
95 views

Is it possible for a phone to still be compromised/infected by malware or spyware even after a factory reset?

If yes then how can one ensure that its %100 wiped clean? Android 7 | rooted EDIT: Same question but how about when rom is flashed ?
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31 views

How to whitelist websites? [closed]

How would I whitelist so that I can only use certain websites in my browser?
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1answer
31 views

Google showing places I haven't been

I am shown on google that I have visited Liverpool and Cornwall both of which are 100's of miles away from where I live. Any ideas why? My Facebook was hacked could this be the same thing?
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1answer
62 views

Problem with a sdcard under Android 7.1.2 three partitions can not be mounted / used

Happy New Year! there is a problem with my sdcard under Android 7.1.2 (Custom Rom) (root=true, adb=possible). The vFat Partition can be used, but the rest is not mounted and can not be used. mmcblk1p1 ...
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1answer
34 views

What level of permeability is there between Android and installed apps?

I just installed Protonmail on my Android device, and I was wondering how much data can Android (Google, really) can get from my use of that app, or from any app in general for that matter. I write ...
2
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1answer
26 views

Utilizing an old Android as a security camera and saving footage to HDD [closed]

I would like to create a small security camera network utilizing devices I already have, namely Android phones. All phones can have a constant sources of charge, as well as be attached to my wifi ...
2
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0answers
19 views

Does ShareIt use the content we share?

In the TOS it seems they say that we give right to use our content.
6
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1answer
372 views

Updating Pixel after many months. Will I get all the missing monthly security patches?

Not a duplicate of this Are security patches only applied to the latest Android version? I have a Pixel 4a, Android 11, running November security update. For various reasons, I do not wish to apply ...
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57 views

How secure is your data in Android when an app is given access to storage, camera, contacts

I am just trying to understand that, these days most of the apps require access to things like camera, storage, contacts. Is there any data privacy link to read through for an app consumer to know ...
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1answer
40 views

Chrome, autofill, and biometric security

One of the recently added Android features is biometric-protected autofill. It should enable something similar to iOS, where credit card numbers and passwords are protected by a fingerprint or Face ID....
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0answers
31 views

Is the Android Emulator from Android Studio vulnerable to Dirty COW?

I want to try out the DirtyCOW Exploit in a Virtual Machine or an Emulator. I have made DirtyCOW run on some versions of Android-x86, with Android-x86 running in VirtualBox. I want to know if DirtyCOW ...
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1answer
75 views

Password-protected APK installation?

I am seeking ways to disable installing apps with APK, i.e. make the setting "Allow apps from unknown sources" password-protected or disable completely for user. Is there a way? Maybe it's ...
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0answers
37 views

Make my screen unlock pin longer than 31 digits

My question is pretty self-explaining. Currently I have a PIN number of maximum possible digits (31) that my Android 10 supports (phone is Huawei P20 Pro). Is there a way to make it longer than that? ...
2
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1answer
331 views

Is there a way for a website or app to view the contents of my internal storage without my permission?

I see there are a lot of articles about the restrictions imposed on JavaScript in Windows Chrome. It can't access the filesystem of a user without the user himself uploading it to the server of the ...

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