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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12
votes
5answers
6k views

QR codes that can't be copied - possible?

I assume this is impossible, but I need to find a barcode (that can contain a url, i.e., a QR style one). It has to be photographed by our smartphone app, but the image will not be changed over a ...
1
vote
1answer
107 views

Android app permission warning: how serious?

Installed a snow emergency parking app published by my city. My android phone warned me that it asks for dangerous permissions. Namely action_boot_completed, get_accounts. It seems strange that a ...
-2
votes
1answer
95 views

Possible phone tapping [closed]

Only when one of my contacts calls me (my son) when I pick up there is somebody else on the line, usually with a foreign accent. When I hang up and called my son, he confirms he made the call and ...
1
vote
2answers
546 views

Understanding Certificate Pinning [duplicate]

I am attempting to implement certificate pinning across a suite of mobile apps. I have been reading a lot about the different strategies (pinning to the CA/intermediate, pinning to a leaf cert, ...
3
votes
2answers
181 views

Risks of lending/borrowing a SIM card temporarily?

Suppose someone asks to borrow my SIM card so they can e.g. check if their phone is unlocked. I watch them use the phone to check what they need to check, and afterwards take my SIM card back. Is ...
13
votes
0answers
408 views

What unique device fingerprinting information can an iOS8 app collect?

As a follow-on to this question: What unique fingerprinting information can an iOS7 app collect? What remaining device fingerprinting privacy / security vulnerabilities still exist as of iOS 8? Can ...
1
vote
2answers
2k views

What makes an Android application vulnerable to SQL Injection?

Definition of SQL Injection SQL injection is a code injection technique, used to attack data-driven applications, in which malicious SQL statements are inserted into an entry field for execution (e.g....
1
vote
1answer
95 views

Are there any potential complications with these secure baseband ideas?

So I have been working on some ideas for securing cell phones from baseband level exploits and I was wondering if there are any potential complications with these solutions such as practicality or ...
0
votes
1answer
59 views

Verifying that an Android banking app checks that the certificate is trusted

I have a closed source banking app on my unrooted Android phone. I'd like to verify the following: The app uses SSL to communicate with the server The app verifies that the SSL certificate of the ...
5
votes
1answer
66 views

How do I verify that in-app social login dialogs are secure?

If I have a mobile app that supports some kind of social login feature, say, to login to the app from my Facebook account, and if the app opens the Facebook login page inside the app in a mobile, is ...
9
votes
2answers
232 views

Why are Android permissions granted in groups?

The Android documentation on Permission Groups states that If an app requests a dangerous permission listed in its manifest, and the app already has another dangerous permission in the same ...
1
vote
0answers
33 views

Where should I store sensitive data within an Apache Cordova application?

I have to implement a 2 factor authentication (2FA) feature within an Apache Cordova application so that the user is able to login into the desktop application using the generated token. Common 2FA ...
-2
votes
1answer
61 views

Is my iPhone 6S Plus compromised? [closed]

Is it usual practice on an iPhone 6S Plus for the wifi and Bluetooth addresses to be identical except for the very last number? One ends in .44 and the other .45. I've also had a lot of weird things ...
0
votes
1answer
69 views

Mobile apps social Oauth

I need to develop iOS and Android apps that should have to communicate with a server throught RESTfull API. Also I need to register and authorize user throught popular social networks like Facebook, ...
1
vote
0answers
97 views

Sensitive Information Disclosure via plist on iOS, does this affect security at all?

The security team has found sensitive information which is disclosed in info.plist, API keys were also exposed. Fabric is being used and Fabric API key is the way to authenticate the users or their ...
0
votes
0answers
451 views

Avoiding Client impersonation with Rest Api

I'm sure that this use case has a known solution, but I can't find anything on google or I don't know which keywords to use. We are building an Angular app that is backed by a Rest Api. For ...
0
votes
0answers
31 views

GPS security standards

Are there any GPS (global position) security standards to secure any kind of GPS implementation? For e.g GPS software coding standards, GPS traffic encryption standards? I asked because nowadays there ...
6
votes
4answers
557 views

What do you do to protect data on a Macbook in the event of theft/loss of the device?

What setup do you recommend to protect data on a MacBook in the event of theft/loss of the device? I'm specifically interested in Macs here, rather than laptops generally, and in concrete ...
8
votes
3answers
605 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 “secretly”...
0
votes
0answers
25 views

What is more secure for Authentication: PostMessage or Redirect

Apple iCloud has the option to either PostMessage or Redirect upon authentication. Which is more secure, and why?
9
votes
3answers
18k views

Encrypt data within mobile app and send to web service

I'm developing a mobile application for Android and iOs. What is best practice when it comes to data encryption within the mobile application which will be sent to a web service? Basically I will ...
5
votes
1answer
292 views

Methods to defend against rogue (mobile clients)

I'm currently building a MVP (financial mobile app) and trying to understand the best ways to prevent rogue clients interacting with the server. When looking at the security of most mobile apps I can ...
2
votes
0answers
75 views

Google/Apple account for corporate issued mobile phones

We are working on implementing MDM (Airwatch) for all corporate mobile devices (no BYOD will be allowed). But I have a question as what is the best way to avoid users use their personal Gmail or ...
7
votes
1answer
134 views

Do cellphones periodically send a “hello” msg to nearby WiFi APs?

I recently stumbled on this site, offering cell phone detection solutions: http://www.libelium.com/products/meshlium/smartphone-detection/ Where they state that: Users have to do nothing to be ...
2
votes
1answer
99 views

The Walmart clerk takes pictures of my IMEI # and Phone numbers

I went to WalMart looking for a cover for my new LG-Stylo Smartphone. I asked a one of the workers where to find them and he said they don't have any. Come to find out he has the same phone so I start ...
2
votes
3answers
555 views

Is it possible to protect against rogue mobile base stations? [closed]

I just read the answer to this question Mobile numbers capture and transmit data and it sounds surprisingly simple for calls/SMS (and data?) to be intercepted by a fake base station. From what I ...
5
votes
4answers
147 views

Laptop battery dies, only IT is allowed to access machine after plugging in

Apparently, my company has a security policy that states that if a laptop's battery dies (that is, uses up all charge because it's unplugged), the laptop gets locked and a domain administrator has to ...
5
votes
2answers
196 views

What happens when you SIM-unlock a cellphone

In the UK the process for unlocking a mobile phone (cellphone) usually involves either buying an "unlock code" from ebay which you then have to put into the phone to unlock it, or taking the phone to ...
1
vote
2answers
197 views

Mobile Phone Client -> Server Authentication based on device

I have a mobile application (Android, iOS) and a server, which handles requests from the application. It is easy to perform standard authentication using SSL, password and random token to ...
6
votes
2answers
960 views

Discovering IP or Mac address of mobile devices passing by.

Is it possible for someone to discover the IP and/or MAC address of my mobile device, even if I do not attempt to connect to their network?
-4
votes
1answer
168 views

What is the most secure mobile os? Ubuntu? [closed]

What's the most secure mobile os for the average day to day user concerned with protecting online banking, personal data, photos etc? And is the new Ubuntu mobile os likely to have the same security ...
0
votes
1answer
110 views

Mobile phone tracking, identification of the attacker [closed]

Once I was told that you can identify if your mobile phone is being tracked by someone (e.g. police), by calling placing a specific prefix to the number. This prefix in my country is normally reserved ...
28
votes
1answer
7k views

iOS Encryption Details

Following on from this question, what resources are available relating to the technical specifics of how apple implement encryption on their iOS 4.x series devices? The Apple marketing material here, ...
4
votes
2answers
178 views

Passwordless website authentication scheme

I have a userbase which really isn't all that inclined to create a secure password for a website. They're also almost entirely on mobile devices, so I would like to try something a little different ...
2
votes
1answer
48 views

How can I inspect/audit an Android phone if it's vulnerable to CVE-2012-4221 (or any other?)

I want to create a guide (or app) to audit devices and determine if the hardware or software is vulnerable to attack. Given an arbitrary phone, what process should I do to determine if outstanding ...
3
votes
0answers
77 views

Can a mobile phone be reliably “nuked from orbit”? [duplicate]

Similar to how a rootkit affects PCs, and how mobile phones have special OEM software on them.... Is it possible to reset a suspect phone to it's OEM/patched state, and have high confidence that ...
2
votes
1answer
96 views

Securing APIs from Rogue/Fake iOS or Android apps?

How do you protect a non-public web API from a malicious app where a developer has discovered how to perform some requests? Take Instagram's app as an example: Instagram does not have a public API ...
3
votes
2answers
74 views

How protect mobile website against encapsulating into rogue native mobile app?

We are developping a mobile application (m.website.com). Is there a way to prevent a rogue developper to build an IOS / Android native app that simply encapsulate our website into the app using ...
2
votes
2answers
118 views

Can BlackBerry keep us safe from network providers

I recently brought a BlackBerry mobile and the reason I have gone with BB was the security it ensures and now I have a doubt. That said in the Internet, Massage from BBM will first reach Canada via ...
7
votes
3answers
10k views

Android/iOS application security testing checklist

According to OWASP, we have a list of top ten mobile application vulnerabilities. But we are damn sure that the number of vulnerabilities on mobile apps, especially android apps are far more than ...
5
votes
3answers
177 views

Does a Smartphone contain all the essential properties of a Smartcard? If not, what is missing?

Can a smartphone, alone, be a valid substitute for a Smartcard? If not, what is missing technically speaking? Does the TPM chipset (which I assume is in the phone) provide enough security to "act ...
27
votes
4answers
17k views

Is HTML5 vibrate feature a security vulnerability?

While surfing a news website on my mobile, I receive a virus infection alert warning that triggers my phone to vibrate incessantly. The alert looks like the following: I didn't expect my phone to ...
6
votes
3answers
5k 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 ...
9
votes
5answers
8k 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 ...
0
votes
1answer
1k views

On the ability to reverse engineer the Instagram Private API

I came across these blog posts where a man was able to extract the Instagram private signature key from the Android app: http://mokhdzanifaeq.github.io/extracting-instagram-signature-key/ Which could ...
1
vote
1answer
109 views

Signup/Signin with Mobile+PIN

Telegram implements signup/signin with mobile number and a 5-digit one-time password. I believe the flow to be something along the lines of this: Grab the mobile number, generate an OTP, cache it ...
1
vote
0answers
38 views

TLS in slow/unstable mobile/wireless networks [closed]

We have this rather old VPN tunnel software that is running in various wireless/mobile networks (from 2G mobile and upwards). It is currently running WTLS, as this software is from the old days when ...
0
votes
2answers
83 views

Two-factor authentication methods: password + SMS/voice message vs. password + app-generated code?

I am thinking which methods of two-factor authentication are most reliable and secure when using Pebble as an user end who has the capability of seeing his or her SMS messages but not answer phone ...
3
votes
3answers
95 views

Implement a passcode to authenticate app users [duplicate]

This question is related to this one. We're busy implementing 5 digit passcode authentication for our app (Android, iPhone), but we're running into a complexity. We're unsure how we can safely ...
36
votes
6answers
26k views

What is preventing us from sniffing the mobile phone communication?

I'm learning wireless penetration testing. It really is amazing. But it made me wonder, what about mobile phones? They are also means of wireless communication. So, our entire voice must be in the air ...