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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6
votes
1answer
946 views

How to get the latest security updates for CyanogenMod?

I have installed CyanogenMod in February 2016, and the device information showed Android version "5.1.1", and the security patch level was "November 2015". This hasn't changed until today (2016-02-...
0
votes
0answers
79 views

How to show SSL fingerprint of a self-signed certificate in Firefox for Android

I set up a website with a self signed SSL-certificate. As this website is just used by me for now, I'm fine with checking the fingerprint when connecting to it. This works just fine with Firefox or ...
0
votes
0answers
20 views

Is it possible to require “initial unlock” for smart lock

Is it possible to enforce initial unlock while using smart lock? For example, I'm using smart unlock with "Trusted places" and I would prefer it didn't automatically unlock when I get in range of my ...
0
votes
1answer
43 views

To configure tethering as two step login?

I have given my password of wifi stations to group of people. However, I want to allow only specific people to login at specific time. Attempt I could not enable a basic MAC filtering for devices. ...
6
votes
3answers
66k views

How do I decrypt files on my SD card that I encrypted using the Settings?

I have files that I used to copy from my SD card to my PC using the USB Mass Storage option under the "USB connection" pop-up. I checked the flag under Settings->Location & Security->Data ...
0
votes
0answers
19 views

marshmallow and personal security/privacy [duplicate]

I've been reading the news in the US about a court order for Apple to help the FBI bypass the security check present on devices running iOS8+. Since iOS8, Apple has stopped storing encryption keys on ...
0
votes
1answer
64 views

Famoc & KNOX on Samsung XCover 3

I have a problem, I have a phone with Famoc & KNOX enterprise security applications. I was able to root the device with Odin, I've installed twrp-2.8.7.0 & SuperSu. I've removed this Famoc ...
-2
votes
2answers
2k views

How to remotely backup folders on stolen Android?

Most Android anti-theft apps can backup photos and text messages, but is there any app that can be installed through the web version of Google Play that can give me access to my folders and files to ...
0
votes
1answer
52 views

What can be accessed if phone is lost?

If a phone has not had its bootloader unlocked, has not been rooted, has a finger print lock as well as a pin lock if the fingerprint lock doesn't work. How much can a thief access on the phone? Will ...
10
votes
1answer
671 views

Why is fingerprint lock considered less secure than pattern lock on Nexus 5X?

My Nexus 5X highly recommends to set up pattern lock in addition to fingerprint lock, and the pattern is asked upon every reboot. And my password manager (KP2A) recommends to use fingerprint unlock ...
0
votes
0answers
33 views

What does stop somebody from flashing a custom recovery and pulling all user data?

For example, I was able to install a Clockworkmod recovery on my Samsung Galaxy Ace 3 phone via Odin and back up all the data in a few clicks. But if I could do it, what would stop somebody else who ...
3
votes
1answer
54 views

Protect from theft at flash level

There are a lot of apps that could block your phone in case of theft, take picture of thief remotely and such, but in case of reset any of this security methods will be useless So I was wondering if ...
15
votes
3answers
13k views

How would you uninstall a rogue Home (Launcher) application?

If you were to install a Home Screen application that does not give you access to the System Settings screen (to go to Manage Applications), and also does not let you launch Apps (such as the Market ...
2
votes
1answer
214 views

Can't remove stolen phone from account

So I had an Android phone stolen - nearly two years ago now. When it was taken, I immediately reset my Google account password (and most others). I have 2-factor auth on my Google account. I have ...
0
votes
0answers
24 views

Custom ROM - easiest way to default to functional adb

When building a custom ROM (or for that matter, modifying existing) - what's the best way to make sure that the OS starts up with adb-USB enabled, and with the host's key already accepted?
0
votes
1answer
38 views

Keeping forensic cops out

I was just arrested and bonded out immediately. my phone was confiscated. It was an Android and is there anything I can do to keep them from accessing the contents of my phone? Would deleting my ...
4
votes
3answers
14k views

Preventing browser redirects on Android (and iOS)

There seems to be an issue occurring with mobile browser apps on Android and iPhone being redirected to advertising sites. This is interrupting the browsing experience. The problem: A user visits a ...
1
vote
1answer
209 views

Phone number detected by a web page when browsing from chrome for android

I recently got subscribed to some alerts by the mobile provider automatically and some amount deducted from my phone balance. I called up the customer care centre and they agreed to refund the amount, ...
1
vote
0answers
74 views

How to hide winrar or other apk files in general?

I have stored some important files in my android phone in rar format. I've hidden these files in .nomedea folder. I've also enabled password for these files via win rar. The problem is for opening ...
2
votes
0answers
158 views

How to use network interface as non-root user?

I want to communicate between my Android device and my Linux box over IP through the USB network interface mode. The device I'm using is a OnePlus One running CM12.1 nightly builds. It's rooted and ...
1
vote
0answers
528 views

Android 5.1 update, Motorola X (1st Gen) and “Skip” NFC tabs (Really: disable “swipe” step before unlock)

I've just upgraded my gen 1 Moto X to 5.1. I've managed to get the NFC "Skip" tabs working again to unlock the phone, but the overall behavior is worse than with the prior release. Before 5.1, when I'...
20
votes
3answers
22k views

List of open ports on Android

Is there a way, on a non-rooted Android device, to see a list of what apps are listening on what port? Or even a way to see if an app is listening on a specific port?
0
votes
0answers
50 views

Protection from flashing ROM

Hi so i was trying to theft protection my android phone. I unlock screen lock code, Cerberus with root privileges and also I'm about to encrypt my phone(not that it helps much to recover your phone ...
-1
votes
2answers
119 views

Why aren't these UI “hacks” more often exploited?

I'm asking mostly about the global UI "hacks"1 in use by Facebook Messenger (specifically, chat heads) and the Facebook app itself (specifically, those really annoying "psuedo-Lollipop" notifications ...
3
votes
1answer
197 views

How to override default Android's default screen lock security policy?

I want my Android device screen to open without requiring password. So I chose "none" option in Security settings. But, when I needed to add a VPN connection, it required me to provide a password, PIN,...
0
votes
0answers
42 views

Extract OS signing public key

I have got a OnePlus Two with OxygenOS (an Android ROM made by OnePlus). I modified my OS by installing Kali Nethunter, and I now want to flash back to stock OxygenOS. I found the .zip file on the ...
9
votes
2answers
2k views

Can I recall a command to reset a lost phone?

Last night I lost my Nexus 7 coming back from a friend's house. Since it has a lot of confidential work email on one account I logged into the Android Device Manager and - when it didn't show up - set ...
0
votes
1answer
83 views

Android rooting security considerations

I know this question has been asked many times, but I didn't see a clear answer to it from security experts, or it is from several years ago and things might have changed. My question is double: ...
2
votes
3answers
23k views

How to disable pin security from Samsing Tab 2

I have a Samsung tab2, and have added screen pin lock on my Tab few days back as I was going out. Now I don't want to use pin lock as security, but I am not able to disable it. I am going to setting ...
26
votes
5answers
2k views

Audit app permissions easily in one place?

Is there anyway to list all the applications installed on your phone and the permissions they require all on one page, or export the list so it can easily be audited?
-1
votes
1answer
74 views

Can a hacker simply copy shared prefs from one device to another to hijack a user session/state?

I'm an Android apps developer. I'm trying to address a security concern in one of my apps. I need to test a scenario in which someone will try to copy the shared prefs file (or files) from one ...
0
votes
2answers
28 views

How do I safely “copy” my gpg keys from kgpg on Linux to an Android app like openkeychain?

The title says most of it. I have a key pair setup on kgpg running under Kubuntu 12.04 Linux on my notebook. My smartphone (Galaxy S3) has no SD card slot. I want to be able to transfer files between ...
4
votes
6answers
27k views

Find what app is causing popups, NOT in notification bar

I am getting these popups regularly. They do not appear in the notification center so I can't find out what app is causing them. The only app I can think of that I have installed recently, I have ...
4
votes
0answers
3k views

What is Google Partner Setup?

What does the Google Partner Setup app that is pre-installed on almost every Android device actually do? Why does it need each of those intrusive permissions, especially the Phone permission? Why ...
0
votes
0answers
79 views

Disable android call dialer/function for public 3G tablet

I'm putting an Android tablet at a public display area and the tablet needs to be powered by a 3G sim card. I don't want anybody to dial out using this tablet. I read somewhere that I can disable ...
0
votes
0answers
55 views

Make a app Package For android

I have made a "Security" phone for my personal use. I have about 49 apps and about 7 wallpapers. Can I make a package that when flashed in a Custom Recovery It installs all of the apps and make the ...
1
vote
0answers
45 views

How are internal components of Android tested before releasing?

How are the internal components of Android such as Zygote and Binder tested before being released? I tried looking around for answers to this but most resources (blog posts and research papers) I ...
3
votes
0answers
23 views

Safely buy a used mobile

Is there any step I need to take after buying a used Android phone from a stranger? Is restoring the device to defaults enough? The hardware should be fine; I'm talking more about the OS itself and ...
13
votes
5answers
7k views

Can my Android device become - remotely and without my permission - a wiretap and get used as surveillance device?

I saw the following article: An article in the Financial Times last year said mobile providers can "remotely install a piece of software on to any handset, without the owner's knowledge, which ...
3
votes
1answer
2k views

Pin unlock without showing numbers

When you type your pin into the Android lock screen, it does the usual mobile password field thing where it actually shows the last character you've entered. Is there any way to disable this on ...
0
votes
1answer
453 views

How to turn off Android Device Manager on the web

My phone got stolen yesterday. I have never downloaded Android Device Manager or enabled it on my phone but for some reason, when I go onto the ADM web page, it could track my phone (up until a day ...
32
votes
2answers
73k views

How is the Gmail password stored in Android - and where?

I have looked around and found no information on how Android manages to store passwords on the device. Especially Gmail passwords. I'm looking to learn how Android encrypts and stores passwords ? What ...
1
vote
1answer
49 views

Is there any SSH OS support in Android?

I am reading the article Jolla and SSH push Sailfish Secure as “European alternative” mobile OS. I have used third-party applications for SSH in my phone but would like to have OS supported. How ...
0
votes
0answers
79 views

AccountManager: how can passwords be stored and retrieved without also storing the decrypt key?

Can the Android AccountManager be hacked and its account passwords retrieved? I mean, how is the decrypt key stored in a way that is safe from being retrieved by password-spoofing software? Is special ...
1
vote
0answers
141 views

How are certs validated against default trust store?

Through some reading, I have a fairly rough understanding about how https works with Android apps, especially how are certificate validations done. Some of the resources that I referred to for gaining ...
-1
votes
1answer
45 views

How do I tell if a given Android phone is vulnerable to CVE-2012-4221, CVE-2013-2596, CVE-2013-2597, CVE-2013-6282?

I want to determine if a given Android Phone + OS is vulnerable to a set of CVEs. What process do I need to do to do to determine if a given Phone is vulnerable?
1
vote
1answer
680 views

Toast: MMS cannot be sent/received when mobile data is disabled — shows up at every boot in Moto G XT1033 running Lollipop 5.0.2

Details: Moto G XT1033 with Android Lollipop 5.0.2 Is there something wrong? Why would any app request this feature just exactly when I turn my cell phone on? (Click image to see its larger ...
10
votes
3answers
24k views

How can I remove trusted CAs on Android?

From the current fallout around DigiNotar (in short, a Root Certificate Authority that has been hacked, fake HTTPS certificates issued, MITM attacks very likely), there are some parts concerning ...
-1
votes
1answer
325 views

How to remove Taboola adware?

I have factory-reset my mobile, and had already scanned with antivirus for adware, which it found but it couldn't remove. What should I do?