Security in mobile devices. Issues concerning regular cellphones, smartphones, tablet computers and other portable information devices all fit into this category.

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2
votes
2answers
31 views

ByPass usb GPO with iphone -and probably other mobile-

So I am running pentest on a device running Win7 and admin user set group policy to disable all mass storage devices and all usb's. I have access to local user without privs. Although my usb stick ...
-2
votes
0answers
49 views

how to tell if a user has a certain product [closed]

I'm trying to figure out how to code a function, in which, if a user has a certain online product they can gain access to an area inside my android app. All help is appreciated, Jordan
2
votes
2answers
78 views

How do you find out if a phone is secretly sending private data to a remote server?

I read a recent article on a Chinese phone manufacturer on Wall Street Journal that says: The rumors had begun when a user posted online in mid-July that his RedMi Note smartphone was ...
4
votes
5answers
552 views

Is it possible for a phone to be transmitting even while turned off and the battery removed?

Is it technically or theoretically possible for any part of a mobile phone's circuitry to be still on and transmitting even while turned off and the battery has been removed? If so, how? I am ...
1
vote
1answer
96 views

Can virus save to SIM Card?

(Before everything excuse me because of me English) Today one of my friends asked me about his Nokia 130 Dual SIM. There was a problem about Short Message System. No Messages were sent from that ...
6
votes
4answers
381 views

How do location-based apps avoid getting cheated by emulated GPS?

Some apps like Foursquare require the user to "check in" at physical places, in order to gain money benefits. Given that emulated GPS are available for customized versions of Android, it sounds easy ...
2
votes
1answer
89 views

Is it safe to use virtual mobile numbers for verification

Is it safe to use virtual mobile numbers for account verification & authentication for services such as PayPal, Twitter, Gmail, Linkekdin, etc.? And what is the security drawback for this?
0
votes
1answer
70 views

Native app, token authentication without login/password

I'm working on a always online mobile game (native android/iOS app with Unity) and i would like to be able to authenticate the player without requiring any login/password at the beginning. For those ...
43
votes
1answer
3k views

How does a SIM card prevent cloning?

I have read a few articles about SIM cards, stating that the chip inside them uses some cryptographic magic to prevent people from cloning your number. This to me seems borderline impossible, given ...
-1
votes
1answer
157 views

Someone borrowed my phone and Im scared its hacked [closed]

I am from Australia and I use a iPhone 4. Today, a young guy asked to borrow my phone, since he was out of credit and since I was trying to be a good samaritan, let him borrow my phone (also we were ...
0
votes
0answers
31 views

Mobile App Processing Debit Card Transactions

I am creating a mobile app for iPhone and Android and the respective API that will be exposed to support the operations. This operations will require the customer to type the PIN to complete the ...
0
votes
2answers
61 views

How to securely serve client-side-only web content to mobile with convenience?

For a cryptocurrency client implementation, I am serving a single page webapp to mobile clients. It is a client-side-only page. I would like to serve this page to clients, but I fear tampering by ...
6
votes
3answers
1k views

Is it possible to track a missing brand new phone? [closed]

I ordered a Nokia phone online and it turned out that the packet had been tampered and the phone was missing from the package. Obviously it does not have a SIM card, etc. I assume someone stole it ...
0
votes
0answers
61 views

How to secure my REST API once user authenticates with Google on mobile client?

In my application, I build REST APIs so that user can interact with my application server. Since I do not want to maintain User/Passwords, my iOS app authenticates client using Google. This all ...
0
votes
1answer
74 views

A no-login approach to authenticating a certain device, MAC-Address as password?

I have created a REST api, and now i'm thinking about authentication. I want the mobile application's flow for the user to be very simple: only having to enter a username and then this username ...
0
votes
0answers
50 views

Mobile Backend Server: How to validate authenticated client is valid?

Consider this scenario Step 1: App asks user to "Sign In" using Google or Facebook Step 2: Once authenticated, app sends user's Id (from Google/Facebook) to My App Server requested to app ...
1
vote
1answer
67 views

Checking if apk's contain malicious software [closed]

Is there a programmatic way to check if a given mobile application executable is malicious through some sort of lookup service? I have used Virustotal for desktop malware, does it work for mobile ...
1
vote
1answer
87 views

Is it safe to store public key encrypted password in the Mobile Device for authentication purposes?

I have a Apache Cordova hybrid mobile app that needs to authenticate users, but we don't want to prompt for credentials every time the app is used. Some options came to my mind: Store the password ...
-2
votes
1answer
52 views

Voicemail PIN reset - what is a DDN? [closed]

Here is a recording of Glenn Mulcaire using social engineering to reset the PINs to voice mailboxes to which he did not have authorised access. (At least, that's my understanding.) He appears to say ...
3
votes
2answers
124 views

How can I get a fiddler-style trace of an iPhone / Android?

I want to audit the HTTP and HTTPS activity of apps downloaded onto my mobile device. What is the best way to do this? I own the device, can add a root certificate, and can connect the running ...
0
votes
0answers
15 views

Is SCEP safe if I use a different long and complex password per enrollment, and validate it against expected parameters?

I'm considering using SCEP to enroll iPads and other devices in my network. The iOS configuration profile allows me to configure a different password for each device. Is it valid, and safe for me to ...
0
votes
2answers
578 views

Why don't mobile operators blacklist stolen phones using their IMEI?

I've just read this piece of news that Android and Windows phones will get a 'killswitch', rendering them useless to potential thieves. However, since all devices have a unique identification number ...
0
votes
0answers
13 views

Should an SMIME signing and encryption key have different expiration dates?

Assuming the client supports different keys, what is some rationale that should be considered for signing and encryption keys? For example, since the encryption key needs to be present on each device ...
0
votes
1answer
63 views

How do I secure “Data at Rest” only allowing Service API to access it from a mobile application

How do I secure data at rest from unauthorized access, but still allowing my application to access the data using user authentication over HTTPS? My scenario is as follows: Login to application ...
1
vote
3answers
98 views

Is it possible to read files in a mobile phone for carriers through mobile network alone?

Say a smartphone does not have any (internet) data plans activated (no gprs, 3g data etc.). It just connects to the tower for calls. So is it technically possible for the carrier or law enforcement ...
2
votes
2answers
293 views

how can I tell if I'm under IMSI cell phone surveillance

I've recently had an encounter with the law, the details of which I won't disclose here since the case is still in court. They took my phone, naturally. I deactivated it as soon as I was released ...
0
votes
2answers
93 views

What is the purpose of HTTPS GET vs POST requests when certificate pinning?

I have a mobile app which uses public key pinning to make sure that I only connect to servers from my CA. This works great with https, and it makes it so that nobody can really proxy my server and ...
0
votes
2answers
68 views

When Activesync policy is applied to iPhones allows thumbprint-unlock, while Android does not. Which is correct?

We have a long-standing ActiveSync device policy that requires an unlock code for all phones that use corporate email. It seems that iPhones with "swipe to unlock" and Android phones with similar ...
5
votes
2answers
580 views

GET over HTTPS vs POST over HTTPS [duplicate]

How safe is a hybrid mobile application developed using a GET Web service over HTTPS? What are the pros and cons of using it and how safe is POST over HTTPS?
0
votes
1answer
69 views

What security mechanisms are in place for iOS' custom keyboards?

Apple has just announced iOS 8. The new version appears to be more extensible than previous versions, and one of the new possiblities is to allow developers to develop custom keyboards, different than ...
0
votes
2answers
116 views

Is it safe to rely on text messages as a means on authentication?

Many websites, including banks, use text messages as their primary or secondary means of authentication. In theory, it sounds like a perfect method unless the user loses their phone or has it infected ...
1
vote
1answer
50 views

Does PCI DSS 1.4 include tablets and smartphones?

1.4 install personal firewall software on any mobile and/or employee-owned computers with direct connectivity to the Internet (for example, laptops used by employees), which are used to access the ...
4
votes
2answers
455 views

3G Femtocell at home: can anybody connect, and is all traffic encrypted?

At our office we have bad reception for 3G. We bought a Femtocell device that provides a 3G connection for one specific mobile provider. This device is connected to our network via ethernet. I cannot ...
0
votes
1answer
61 views

Should a Mobile app able to check what password is locally saved via a user facing feature?

I'm working at a company who is currently working to secure their mobile app (iOS native) by adding check points to security sensitive screens on the device (data is stored in the iOS keychain). User ...
0
votes
2answers
89 views

IMEI or IP being recognised?

Can a website see my IMEI number? I have been banned from a website for multiple accounts, although I always cleared cookies, disconnected and reconnected from "the cloud" which gives me a different ...
1
vote
0answers
62 views

How do Android reverse engineering tools extract packages/ package hierarchy present in Android apps? [closed]

I have been involved in disassembling Android apps using baksmali and dexpler. Whenever I disassemble an app, I find the packages and package hierarchy (that would have been available in development ...
6
votes
2answers
290 views

LTE networks and MITM

2G would leave you vulnerable to spoofed base stations. 3G tried to somewhat fix that using mutual authentication. Now, I tried to check how LTE handles this but I couldn’t find any usefull ...
18
votes
5answers
2k views

Are SMS,MMS stored on the network service providers' servers?

Are SMS and MMS sent via a mobile phone stored on telecommunication service providers' servers before passing them to the recipient? Does it depend on the country or does every network service ...
3
votes
2answers
154 views

How can I validate time-sensitive data is coming from a mobile app, and not being forged?

In our application, a user selects answers to questions. Their score is based on the time spent answering each question down to a tenth of a second. The server is responsible for calculating and ...
1
vote
0answers
118 views

Security risk of connecting one mobile device to another mobile device's hotspot

Is there any risk when connecting an Android Phone to a [Verizon] iPhone's Hotspot? If there are I'd like to know about solutions. The Android Phone will basically be tapping the data plan of the ...
0
votes
0answers
23 views

Does analyst API Flurry break Australian Privacy Act or any other Legal, Regulations, Compliance?

I want introduce Flurry API in my iOS app. But I heard since 2014 Australia start an act to against web page and mobile app to collect user information. My question is simple: Does using of API ...
6
votes
1answer
532 views

Imei and phone number given to unknown sources. What are the risks?

The facts: A friend put his phone number (and possibly the IMEI) for his android device into some kind of hacking PC software that promised to (and actually did) extend his Whatsapp account that was ...
1
vote
0answers
35 views

Is there a TOTP variant that does not require the user to type in a code? [closed]

We're considering a 2 factor TOTP solution on a mobile phone. However, it would be much easier for the user to somehow send the OTP to the server by pushing a button, rather than manually typing in a ...
4
votes
2answers
76 views

Why are apps for mobile devices more restrictive than for desktop?

Application devlopement for mobile devices is generally more restrictive, i.e. the apps runs in a sandboxed environment, they have many limitations when accessing the filesystem, etc. compared to ...
1
vote
0answers
170 views

What is the preferred way of using AWS (specifically S3) from mobile apps?

Adding the AWS access key and secret key directly in app code is definitely not a good approach, primarily because the app resides on the users device (unlike server side code), and can be reverse ...
1
vote
1answer
460 views

How the shopkeepers are getting MAC address of wifi enabled smartphones

It is clear that some big mall's are tracking all the wifi enabled mobile phones before they are connected to the network..how can it been done? I have the similar issue.. how to get the MAC address ...
2
votes
3answers
675 views

How to detect the “Hello packets” sent by a wifi enabled smartphone

Actually I have a case where I should able to detect the mobile phones and get some data about the device available in my network range without connecting to the network. I have seen somewhere that a ...
1
vote
2answers
255 views

GSM A5/1 encryption: Key management

I'm currently studying the A5/1 algorithm used for GSM encryption. I understood how thanks to the symmetric private Key and a public counter frame one can encrypt the communication between A and B. ...
2
votes
1answer
119 views

Is it possible to locate a cellphone's location just by ringing it?

With today's technology, is it possible to locate a cellphone's location just by ringing it, kind of like what we see in movies?
0
votes
1answer
110 views

What would be a valid approach to store private keys?

I'm implementing a mobile app which uses AES encryption algorithm to encrypt some critical values being sent to a remote server (basically, the user password), and then decrypted on the server side ...