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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Access request to account by com.eg.android.AlipayGphone.perf
The message below keeps popping up.
Access request
The following one or more apps request permission to access your account, now and in the future.
Alipay
com.eg.android.AlipayGphone.perf
Do you ...
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How do you display a boarding pass without unlocking phone?
I found that on Apple you can definitely display a boardings pass without unlocking.
For Android I found similar directions: load into Google Pay your boarding pass.
But then when I click from locked ...
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How to make a phone locks automatically when seeing someone's face?
I just want to ask if is it possible to make my phone lock when it sees person A's face. It's reverse to unlocking my phone.
It should work on all screens, whatever I'm doing, does that mean the ...
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is there a way to lock down an android phone to a specific IP range (i.e spotify IP addresses only)?
Is there a way to lock down an android phone to a specific IP range (i.e spotify IP addresses only)?
We want our daughter to listen to spotify, but not access the internet in any other way. Right now, ...
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Is Galaxy S3 always disclosing an WiFi SSID? [duplicate]
I read tons of articles about how is it bad do hide SSID because client devices can disclose the network parameters by constantly "pinging" it when not in range. Ok, here is the client the ...
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What is Google up to? Google Play Store updating apps even though auto-update is disabled
Recently, I've noticed Google Play Store automatically "updating" apps, even when auto-updates are explicitly disabled.
I put "updating" in quotes, because all the apps in question ...
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What to do if malware not gone after complete factory reset?
I have a virus in my Samsung galaxy s21a, and even after a complete factory reset phone doesn't recover. What would be other solutions to fix it?
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Does Android Lolipop 5.1 get encrypted by itself upon first boot?
My doubts are,
Would an android device shipped with Lollipop 5.0 get encrypted itself upon first boot? I saw a lot of blogs saying Lolipop does not come with default encryption but in the official ...
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How to fix hijacked audio?
I probably got a virus in my Samsung Galaxy A21s and iPhone 7 because I receive modified audio when I try to listen to audio or video via social media such as YouTube or Facebook. It's some sort of ...
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Do Google & OEMs always have backdoors in Android devices?
In a helpful comment on this Android Stackexchange question, prominent contributor alecxs states:
google and OEMs will always have own backdoors in propritary [sic] blobs for baseband/modem etc - you ...
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Take front/selfie photo if wrong password is input on the lock screen
Operating systems like iOS include the system that when another person tries to unlock your phone without your permission, it takes a photo of that person and warns you.
Is it possible to have this on ...
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Can installed apps access data on android storage in background
Will it be possible for an app to read data in the background if it has media access permissions or even full storage access permission?
Assumptions:
Android 11 and above
Media and file storage ...
- 151
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174
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How to prevent network connectivity after a phone restart before the NetGuard firewall starts blocking apps' traffic?
There seems to be a major vulnerability in Android: even when using firewalls these aren't active immediately after a restart.
The seconds before the firewall (NetGuard) starts can be used by apps ...
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BRATA (Brazilian RAT Android) - is there any action and treatment from it?
As far as is known, with this virus, the attacker, in addition to stopping antivirus programs, can also block the system menu while working with it by the user. The virus copies system data and then ...
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"Auto Update: Security" apk in downloads section
I found an apk called "Auto Update: Security" in the downloads folder of my phone.
I wasn't able to access its details as every time I tried to do so the package installer would start, with ...
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Can Android 12 update trigger "new access" notification?
I recently got an e-mail warning that an app has been granted access from a nearby location, just after updating to Android 12. Device used was "app" not web browser.
I changed password and ...
Jigh
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Do keyboard apps which are enabled but not selected have access to input text?
I installed a keyboard app on Android 6 and when enabling it, the OS showed a warning that the keyboard app has access to input text.
Since the warning appeared on enabling, not selecting, this ...
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How is an APK prevented from making security changes during their installation process
What if the APK installation ran a few scripts? Overwrote files outside it's designated folder? Edited a few files? etc? What would prevent it from doing so?
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Prevention of Android devices being hacked
I keep seeing media articles saying that smart phones etc are being hacked, particularly by NSO Pegasus. I would like to know how this is done. I'm particularly interested in how to protect against it....
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How to find hidden malware on Android?
Today, while watching a YouTube video on my Samsung Galaxy S20 FE 5G, the left half of the video portion was covered with a pinkish/orangish screen with the words "MICROWAVE SPY CAMERA 1.XXXX&...
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Can we get any data from fingerprint? [duplicate]
Is it possible to get a hash from a fingerprint reading such that it proves the identity of a user on my app and such that I can export the hash?
By export I mean to put it on a document as proof of ...
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Disable "PIN required for additional security" prompt
I have a Pixel 4a, and I constantly have to re-enter the pin, even though it hasn't been more than 48/72 hours. My Pixel 4a currently has a pretty bulky case, making it unreasonable that the ...
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What info/data can a fresh installed app without permission gather?
If I just install an app BUT DON'T OPEN it, can it do/get something? Maybe during installation process, even if I didn't open it yet?
If I didn't give the app any permission, what can it do/know? Can ...
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Are the Android app switcher/multitasking snapshots created when an app is sent to the background, encrypted?
This post here: https://android.stackexchange.com/a/218963/364009
outlines the snapshots location for the app switcher when an app is sent to the background, /data/system_ce/userid/snapshots, or at ...
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Update linking path
How do I add a new directory to linking path? Meaning add a directory to where the dynamic linker will look for shared libraries.
In Ubuntu you can create a .conf file under /etc/ld.so.conf.d and ...
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Android hidden account
Is there any way to create hidden account in Android as it described in Cory Doctorow book "Little Brother"? When I enter pin code like 1234 this will open first account. When I enter 5678 ...
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Could anyone identify this crDroid ROM?
Found some third-party crDROID 7.11 build that works flawlessly on my phone, g530FZ. However, I couldn't find it listed on any credible sources (such as XDA). Anyone else used this rom or saw any ...
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Security concern: Can "multiple user" feature protect my sensitive data from apps that I don't trust? [duplicate]
I'm using lineageos18.1 and for some reason I need to install an app that I don't trust. It requires some critical permission to run normally such as:
All files access
Install unknown apps
Get ...
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How is it possible to hack/steal the data of a stranger's Android phone by holding it by hand for a while?
Several years ago, I saw in my university a demonstration that someone wearing a special finger ring can transfer the data of a stranger's (Android) phone to somewhere without the owner of the phone ...
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How do I shuffle the keypad when typing a PIN?
I just moved to Android from Cyanogen, but I noticed the keypad doesn't shuffle when unlocking the phone. The numbers always show up in the same place, as in a physical phone.
How to I configure ...
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Block URLs from Android Webview [duplicate]
I am looking for a solution to block all URLs except a few which are required for my device to function. I have all the root permissions required to make changes.
Is there any way we can block all ...
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Is it safe to delete a .bin file on an Android 11 phone?
I keep getting .bin files that show zero data in them and others that pop up regularly. Is it safe to delete them? Do they contain any vital information. Are they remnants of sites I've visited using ...
user367043
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If I enable adbd LAN tcp 5555, does it mean any app or LAN device can connect port 5555 to get a shell permission?
I have a Android 8 TV box. In developer settings, I can enable/disable USB debug. After enable, any device in LAN can use adb connect <ip> to connect to (no password or auth required) and ...
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Is it possible using Yubikey as a login authenticator on lock screen?
This question was already well asked and answered in the negative back in 2017 (see at bottom). However, as I'm about to purchase an Android phone, I'm hoping things have changed. I'm a newbie to ...
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How to load android shared libraries
How does Android load /system/lib/*.so libraries?
How does the system knows what file is for what purpose. Is there a database or list of expected.so files and their functions?
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What are the risks of allowing an app the "Draw over other apps" permission?
There's an app I'd like to install on my phone (Android 12) that blocks access to distracting apps. It requires the "Draw over other apps" permission. This seems like a dangerous permission, ...
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How do you configure secure DNS (aka "private DNS") with cloudflare?
note: there are a lot of DNS questions on android.stackexchange.com I'm creating this question because all the other DNS questions were for different scenarios and I wanted to keep this up to date ...
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Is it possible to make Android device connect only a specific Wifi network?
i want to know if it is possible to restrict an Android device to connect wifi networks expect one specific network.
Scenario is:
An app will be installed to the Android device and then device will be ...
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Can we get single time access to in-display fingerprint photos in android?
I am trying to access the fingerprint photo access from the in-display fingerprint sensor for a specific use case. Is it possible to do so?
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Allow access to tablet data security dialog box
I have been given the task to get some android tablets (SM-T500) working in kiosk mode (soti mobicontrol). The issue is when they are in kiosk mode it blocks the USB switcher menu and the allow access ...
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contents of data partition in android
does anyone know what all content is stored in /data or userdata partition in android-10.
I see a lot of directories in /data like app-staging, misc, system, vendor.
what information is stored in ...
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Enable Remote unlock from the Settings via ADB (no root)
I am trying to enable the Setting "Remote unlock" from Samsung (in Settings -> Biometrics and security -> Find My Mobile -> Remote unlock) by using the adb.
I could enable other ...
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On which Android versions was it usual for apps to ask, inside own window, for password of app of other legal entity?
When i tried to open my Whatsapp chats from web browser on laptop, and wanted to scan a QR code from Whatsapp on my smartphone, Whatsapp asked for password, indide the same Whatsapp window. As i have ...
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What data is still left after factory reset?
I have an unlocked Xiaomi Poco X3 (surya) and I got banned in Jodel. The app doesn't have many permissions, but somehow the App recognize me even after a factory reset.
On every new instance I only ...
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Encrypted device doesn't ask for credential on boot anymore on Android 11
I use Android 11 (LineageOS) and recently noticed, that my phone stopped asking me for a decryption password when booting up, so I tried verifying that my data is still actually encrypted. Settings ...
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Does the Log4j vulnerability affect Android users?
The new vulnerability CVE-2021-44228 (also known as Log4Shell) is wreaking havoc, but very little of the discussion is voiced about the average android user.
Is the average Android OS user at risk? I ...
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50
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Switch password by day on Android?
I like to put overly complicated passwords on my phone (currently it has 16 numbers). Is there a way to make the password switch by day? Like every Monday it would be "1234" and Tuesday &...
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Questions Before I Sell My Phone (Too Late To Encrypt Drive?)?
I'm pretty strapped for cash and I need to sell my phone (Motorola Moto G7, Android 10). However, there are some... sensitive... photos of myself on it that I'm not suuuper comfortable with the next ...
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How to verify if device is reporting fake technical specs like Android version, RAM, or storage memory?
I've been asked if I can check some faulty behavior of a device, a cheap Chinese android smartphone.
I'm not really an android expert, usually I install a few apps to help me figure out few things ...
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What are the limits/powers of android device policy?
I work in a university and when we want to login in our university email id, we go to gmail
So we can also use our official email for creating account on android,but when i try to create account using ...
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