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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18 views

Android SmartLock - Proximity to home wifi

I have seen other topics similar to this that are locked to further comments but the conversation goes way sideways. The issue is whether I can have my phone unlocked when I'm within range of my home ...
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35 views

How to force a smartphone to do update?

How come two Nokia 9 phones have the same model, phone service provider and location, but one of them insists there were no updates (neither security nor Android itself which should be 10, not 9, by ...
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why DAC isn't sufficient for Android that it needs MAC(selinux)

I learned that each app is assigned a separate UID so that a rogue app cannot access other apps data and system sensetive data and files. What's problem with this that they have to use MAC(selinux)
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Is there a way to receive security updates after vendor stops them, without compromising SafetyNet attestation?

Imagine the following situation: The vendor of my phone has stopped providing security patches for the stock OS. The HW is perfectly fine and powerful enough for years to come, so I'm definitely not ...
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19 views

What Iptables rule should I apply for accessing/surfing the web only

I've recently managed to gain root privilege on a Mediatek Android smart phone. I'm willing to use this phone for websurfing only. I was wondering what Iptables rule should be applied to only allow ...
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18 views

What are some good security practices to take on a newly rooted Android phone and improvise further

I've managed to root my Mediatek Android smartphone using Magisck. I've managed to set up Afwall+ for now and was wondering how to further harden this device. If you have a smartphone with root ...
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39 views

Is it possible to have a custom ROM with a locked bootloader?

I just mention in-advance to please correct me if I'm mistaken on anything, I've a limited tech proficiency. I've a Samsung S9 (Android 10) and I wish to install an AOSP ROM (also on Android 10), but ...
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28 views

“Your Phone Companion” only works on unlocked phone

I do not know if this is a bug or a feature, but it does not make much sense. I have a Samsung S9, and I managed to connect it to my Windows 10 laptop. I can only start apps when my phone is unlocked, ...
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406 views

What is this device administrator called screen lock service?

I was looking at the device administrators of my phone in the settings and saw a device administrator called "screen lock service". It's description is "Activating this administrator ...
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1answer
19 views

What type of hardware support is required for getting the widevine L1 level?

It s said that widevine L1 level requires hardware support so that it s impossible even for manufacturer to provide it through a system update. But what exactly has to be done by the hardware?
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42 views

How can I configure Android so that all Internet traffic goes through a VPN and is blocked if the VPN isn't activated, without rooting Android?

How can I configure Android so that all Internet traffic goes through a VPN and is blocked if the VPN isn't activated, without rooting Android?
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Safe to share boot partition?

On XDA, at times I see users requesting for boot partitions of a particular version of stock ROM and some people helping out by uploading and linking them. I am not sure if it is a good practice, ...
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import pem file containing multiple CA certs

Using Samsung S4, Android 5.0.1, not rooted. Recently I have found at least two websites that the Chrome browser on Android 5.0.1 reports https is not secure. This is because the phone does not have ...
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65 views

My android keeps telling me my lock password is wrong but it's correct

After rebooting my rooted, unencrypted, android phone, the lock screen keeps telling me my password is wrong. But I am very sure that the password is correct. Because I input this password once per ...
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Is there a way to allow app permissions while not allowing them?

I have an app (android) I want to use for something minor, so it's not a need, just a want. All it's supposed to do is control some lights. But it's asking for every permission you can think of (...
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36 views

list and revoke privileges of apps via termux or or app

I would like to review the following privileges on command line termux or any other emulator -- list all apps including system apps that have ability to rw message & modify contacts. -- ...
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64 views

How to instantly wipe an Android phone in case of arrest?

A Belarusian friend asked me this, but I can't find anything on my own. Protesters in Belarus are beaten once arrested until they give up the pin code to the phone. So, if he could give a pin code ...
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27 views

Security of Solid Explorer Hash

I am not sure if this is the right place to ask, but how secure is checking file hash with Solid Explorer for Android? I don't have computer access so it's my only option. Does anyone know if it's a ...
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37 views

Why would an app ask for location permission when configuring an IP camera?

Why would this android phone app for this IP camera need location services to be turned on before it gets set up? Surely that's a security risk. If the camera company's database is ever hacked, an ...
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115 views

com.whatsapp_preferences.xml periodically gets overwritten how to prevent that from happening

on a magisk rooted Android 10 device com.whatsapp_preferences.xml ( /data/data/com.whatsapp ? ... can't remember that path now ) has been updated with non default parameters as I needed but it ...
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24 views

How to root CovrWare Android phone?

NOTE: This is a very specific question on manufacturer name of the Android phone I am talking about... Hey, guys, I am needing to try and root a CovrWare manufacturer-made Android phone, from https://...
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122 views

I get the following message on my phone: “confirm if it's you recovering your account”

But I didn't do any recovery and of course I didn't press any button. It happened already two times. What does it mean? Does somebody is trying to hack my google account? I have 2 factor google ...
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17 views

How do I remove an account from the Lastpass authenticator app?

I don't want the app cluttered with old codes that I am no longer using but there seems to be no way to remove a code. The Lastpass/LogMeIn online support site also doesn't appear to be any help in ...
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27 views

Can anyone tell me what this means?

I have a spy wear app and it's showing these have accessed my net but I dunno how to figure out what they are..the ones in the pic with ?marks by them when opened thats what it read on the other pics
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31 views

Is it possible to have shell access to Trusted Certificates

I have an Android Application that launches Python via JNI. Inside of Python I have web requets that I make, some need to be secure. I can configure the APK to be able to access a User CA certificate, ...
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25 views

How can I change my location on Tinder (free version) on a rooted phone?

Android 7.0. Using GPS spoofers doesn't seem to work. It works on Google maps though. I don't know what Tinder uses to know where you are but it's pretty good. How can I bypass it? Things I've tried: ...
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34 views

Better Protection for Login Data on Firefox for Android?

Across the Desktop, Android and iOS versions of Google Chrome and Android, Firefox for Android is the only browser that allows viewing the list of saved passwords even when a master password is set. ...
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1answer
60 views

a sketchy person has my phone for half an hour. what should i look for? [closed]

so i met this guy who had like 10 red flags... like I had a stalker once who didn't creep me out as much as he did. we just met and then were chillig and he asked me to turn on a song, which I also ...
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57 views

Forgot Authy password

I accidentally broke my OnePlus 5 which contained the recovery codes for my Instagram and Facebook, both were using Authy as their two factor authenticator. Thing is I apparently don't remember my ...
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24 views

Ensuring that a deleted file cannot be recovered

A few months back, I had deleted a media file from my gallery. My phone wasn't encrypted at this point. Now, I wish to ensure that this file cannot be recovered in any way. What is the best way of ...
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31 views

High battery usage (no wifi no apps no wireless)?

I've noticed that I lose about 20% battery each hour while my phone is unattended and offline. I check the battery settings and find that no apps are running. The phone is rooted, and I'm wondering ...
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43 views

Hide Wifi Password QRCode in latest Android mobiles

We are using Android devices within office network and these devices will be used by operators for daily day-to-day operation activities. Currently, these Android devices are connected to Office Wifi ...
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28 views

Can I install replicant on a Galaxy A10e without bricking it?

I'm trying to UnGoogle my phone for privacy/security reasons, and from one source I heard that if you want to use a smartphone, you're better off getting a Pinephone running GrapheneOS / LineageOS. ...
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53 views

Is Google Voice susceptible to hacking like regular MMS or Whatsapp messages?

I have been using Google voice in a public facing way so as to reduce the chance of receiving malware messages over SMS/MMS or Whatsapp. But is it just as susceptible for someone to be able to sneak ...
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331 views

What can class 0 message (flash SMS) do to Android devices?

I'm using a Samsung phone and I recently got an anonymous message via Class 0 Message Class 0 Message URGENT MATTER ,CONTACT ME MY EMAIL NOW (email redacted) From: (phone no. ...
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46 views

“System” is trying to access Internet

I am using OnePlus 3T, Android 9. Recently I installed an app called "NoRoot Firewall" to prevent the apps from accessing the internet. I explicitly allowed and denied access to internet for some apps ...
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25 views

Automatic downloads

I've noticed in several occasions that on mobile browsers (I suppose it happens also on desktop ones) downloads can be forced without user consent. I've studied the matter and I've learnt that this is ...
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1answer
36 views

Can a blocked contact see any number changes?

I would like to ask, whether a blocked contact will receive an information,if I change my Viber phone number? Is it possible to make the change by only informing a selected group of contacts or ...
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28 views

Constantly changing app “shortlist”

I have a shortlist of five app icons at the bottom of my home screen, usually Phone, Messaging, Chrome, Google and Camera. These tend to remain constant (I've not seem them change). When I swipe up ...
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97 views

Replacing Malware System Apps with Clean Versions of Apps

I have many times found devices or ROMs that have malware installed as system apps. This thread is intended to define a recurring problem and discuss and determine solutions. Background: In many ...
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83 views

how does disabling 'password at startup' works before file-based encryption?

Android 6 (before file based encryption): after encrypting device and setting screen lock, i can choose an option 'require the PIN, password, or pattern at startup' or can i choose 'no thanks'. in ...
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65 views

No permissions but still able to access storage

I'm kinda frustrated! The app has absolutely no permissions but still is able to access my storage (photos and files) on both Xiaomi MI 9T Pro and OnePlus 6 running Android 10 which is all about ...
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32 views

How do I properly enter my GitHub password into termux when prompted?

$ git clone https://github.com/shawarkhanethicalhacker/D-TECT Cloning into 'D-TECT'... Username for 'https://github.com': Then I enter my user name no problem. But after that it asks my password.....
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146 views

App from playstore run but same apk crashes on sideload install

On my noughat device, I have downloaded app from playstore, which is running great. Extract apk from install app, uninstall it and again succussfully install with package installer. But second time on ...
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42 views

Are there any downsides to encrypting an Android device?

Besides requiring a lock screen, are there any downsides to encrypting an Android device (using the native encryption)? For example: is there a performance decrease? is there a temperature increase? ...
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10 views

What can malware on Android 10 actually do? [duplicate]

I was hoping to get an idea of how well modern versions of Android protect your phone using sandboxing. If you install an app and don't grant it any permissions what types of common malware activities ...
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211 views

to identify these services after upg. to andr 10?

To all, please tell me if this is relevant to the forum. the problem: I want to identify these services that appear after the upgrade to Android 10, in adjustments -> applications and ...
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141 views

How to enable 'install unknown apps' on Samsung mobile device?

My Samsung device is running on Android 10, One UI 2.0. I want to install apps using apk file via non-official platforms (the app is not published on Google Play, Galaxy Store). But it won't let me. ...
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11 views

Samsung Gear VR application starts itself on my mobile phone Galaxy S7

From time to time a Samsung Gear VR application starts itself on my mobile phone Galaxy S7. I don't have any VR hardware device. I suspect my neighbours trying to pair a device. How to prevent my ...
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52 views

How can I update my Android Mi A1?

For a while, I have had a notification "Couldn't install system update." Retrying the update and restarting the phone don't help. This is the "December 2017 Security Update." The current ...

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