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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4
votes
2answers
311 views

My friend was fired from her job. Overnight, on her personal phone all her work contacts mysteriously disappeared

As the title stated. My friend personal email is connected to her personal phone. She works on the iPad and her work iPad is connected to her work email. She never checked her personal email on her ...
1
vote
0answers
7 views

Storage of account password on keychain iOS to enable TouchID login

Currently in the middle of a rather long-winded process of deciding upon the use of TouchID within an application being developed due, to security concerns, and wondered if anyone had any advice? The ...
1
vote
2answers
73 views

Can masked passwords on iOS UIs be read?

If someone had physical access to my iPhone, could they see the stored passwords for my WiFi or email that are represented as black circles and not actually the password itself, e.g. under my mail ...
-1
votes
1answer
43 views

Secure PIN verification if HTTPS is decryptable by third party

I'm developing a system where mobile applications communicate with server through HTTPS. The communication consists of two phases: at first, app "registers" at server: among other stuff, user chooses ...
1
vote
1answer
57 views

Can an iPhone be hacked during a phone call?

If I called someone can they hack into my iPhone just by being on the phone with me and knowing my phone number? I was also transferred to another person during the phone call, if that would make a ...
3
votes
2answers
123 views

What are the privacy and infosec risks with Apple Watches and Android Wear?

From what I can tell, Apple Watch apps act like a remote control to a nearby iPhone using Bluetooth or BLE. Conversely Android watches have the ability to run full applications, and therefore have ...
15
votes
0answers
419 views

What unique device fingerprinting information can an iOS8 app collect?

As an addition 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
1answer
30 views

Is it possible to filter internet access on a mobile phone with a 3/4G connection with a proxy server?

If you were to put a pfSense Squid Proxy Server with Squid Guardian on a DMZ and then point a cellphone with a 3/4G connection at it for SSL and HTTP with a self-signed CA certificate installed on it; ...
4
votes
1answer
95 views

Security of cellular-connected devices

The EFF Secure Messaging Scorecard lists a number of apps that meet all of its security criteria. So assuming that end-to-end encryption is accessible for the majority of people in countries in which ...
4
votes
1answer
129 views

What does Obama's phone say about Android and phone hardware?

The recent article Goodbye Obamaberry, hello Obamadroid describes the decision to move Obama's phone from the Blackberry to the Samsung Galaxy S4. The Galaxy 4S is of course an old, foreign phone. ...
2
votes
1answer
82 views

Is it possible to know imei number of other mobile using any sort of wireless technology?

Are there methods to grab imei numbers of mobiles irrespective of smart or ordinary using Bluetooth or similar wireless technologies. Case : other mobile may not have Bluetooth or possibly switched ...
3
votes
2answers
917 views

How to securely store sensitive data on mobile application?

I want to develop a mobile bank app (Windows Phone, Android, iOS) that interact with a bank channel. First time when user opens application the key exchange process begins and at end of this process ...
3
votes
1answer
2k views

How do you erase a Blackberry without having direct access to the server?

I have a Blackberry with no access to the BIS or BES server that managed it. How does one erase and reset the device to defaults?
6
votes
3answers
12k views

Can my phone be hacked just by being called?

I recently found a site, Cell-Spy-Stealth.com, that claims to sell spyware which can be targeted on a phone by simply making a call to it: "It will work even if you get the voice mail, or if the ...
0
votes
0answers
27 views

Encrypt data on mobile device by retrieving keys from server using PIN

I need to securely encrypt persistent data on a mobile device, hiding it from hacking tools. What vulnerabilities are there in this method? Encryption: user sets 4 digit PIN to "protect" data on ...
6
votes
1answer
171 views

Possible for Lync (Skype for Business) to adopt Activesync-style policies?

My compliance manager recently told me that Lync IMs should be treated as e-mail for compliance purposes. This also made me realize that our other email policies (encrypted device, pin required, etc)...
2
votes
2answers
70 views

Apple's OTA update process

When reading the iOS security doc, on page 6, it discusses the OTA update process. The OTA process, includes sending information of current version and device ID to Apple. Inside the OTA response, ...
6
votes
2answers
137 views

Why should you clear your pasteboard when exiting your app?

I've been scanning an iOS application of mine and the highest risk vulnerability appears to be that the pasteboard is not getting cleared when I terminate the application. I don't want the user to ...
0
votes
3answers
229 views

Decrypting SSL over a mobile network

I work for a large company and we are trying to judge the safety of some proprietary information that is being sent and received in a new application we are developing. After our initial testing we ...
4
votes
3answers
1k views

What OS's will “brick” a stolen phone; preventing their use or resale by a potential thief?

You can look at this question in two ways: Prior to purchasing a used phone, I want to ensure that the IMEI is not locked and I'm able to use it fully. Or you can be a purchaser who wants to devalue ...
0
votes
1answer
90 views

Securing Internal Mobile REST API

I am planning to create an internal API for mobile devices for a company. They are planning to use this internal mobile app to get data from custom ERP, uploading contract, etc. Thus, it will be ...
4
votes
2answers
85 views

Difference between “Unknown” and “Hidden” Caller ID

I remember the times when I had an old Nokia phone as my main; there was some weird behaviour with Caller ID which was strange for me. When somebody with subscription to "Hide your number" service ...
31
votes
7answers
4k views

Best practices for securing an android device

Does anyone have any suggestions on securing an Android device? I'm not particularly interested in enterprise level software - I'm looking to secure my own ZTE Blade phone which has a lot of personal ...
6
votes
1answer
4k 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 ...
-3
votes
2answers
74 views

How is two step authentication done in Europe without SMS?

I've heard that SMS use in Europe isn't even close to how much it's used in the US. How do they do two step authentication when a user forgets their password? Is it as simple as just using a robocall ...
28
votes
2answers
3k views

Why do web sites show my iPhone using different IP addresses for HTTP and HTTPS (cellular only)?

While testing a recent adtech integration I noticed something I can't explain. The iPhone uses two IP addresses. Seemingly one for HTTP and one for HTTPS. To further confuse things it only happens ...
0
votes
1answer
31 views

REST API security mobile application with PIN

I am looking into writing an API that will be accessed by mobile devices (We also own the mobile application, there are no 3rd parties involved). As part of the login flow we have been instructed to ...
2
votes
0answers
58 views

Is it possible to overwrite a phone through physical means?

I am currently doing some research into the Apple vs FBI controversy. During my research, I found a Edward Snowden comment that claimed that the government can actually override a phone's data, ...
1
vote
1answer
1k views

Is there a foolproof method to remove spyware from Android smartphone?

I am owning an Android smartphone. I learnt that factory reset may not remove spyware as it might have corrupted the image being installed by factory reset. Is there a foolproof method which ensures ...
1
vote
0answers
17 views

How strong is the state-of-the-art in real-world “implicit authentication” systems?

Years ago, I read a paper about how mobile devices made it possible to authenticate users without entering a password, simply by relying on behavior, habits, locations. Now, the DoD plans to use such ...
6
votes
4answers
5k views

How to harden an iPhone/Android app so it's tough to reverse-engineer it?

These are the following objectives I have in mind: Make the app hard to crack, as the binary will hold some secret tokens. If it still can be cracked, is there any way the app can tell someone or ...
2
votes
2answers
197 views

How to test image upload vulnerability in a mobile application?

I am administering a mobile application with many users. Users can upload their own .jpg images. I cannot know at this moment if image inputs on the application I am administrating are sanitized or ...
33
votes
5answers
20k views

Can a powered down cell phone be turned on remotely?

I know this is tin-foil hat fodder, but at least one judicial opinion referenced a bug that could track/listen in on the subject "whether the phone was powered on or off," although that may have been ...
-2
votes
1answer
91 views

Can my employer see my activity over their WiFi if I'm using the Tumblr app? [duplicate]

I have a great relationship with my employer and I don't think anyone is spying on me and I don't care if they read my email. But if I'm logged into their WiFi and I'm using the Tumblr app on my ...
2
votes
2answers
60 views

Suspicious SMS about activated phone service

Not long ago I had heard that someone from my family had an suspicious situation with SMS service. What happened was this person receive message like Service 'Play music on calls' have been enabled. ...
1
vote
1answer
63 views

Erasing Lastpass Preminum from mobile phone [duplicate]

This morning I dropped my LG G4 (android 6 Marshmallow) phone and shattered the display. I plan to buy a new shiny phone and sell the old one cheap. I use Lastpass Premium to to store all my ...
-3
votes
0answers
64 views

How to check when SD card was removed from phone? [on hold]

I just picked up my phone from a mobile repair service without my SD card. They did not only destroyed my mobile's display but also removed my SD card! I just want to know if there is any way to ...
-1
votes
1answer
113 views

Does WhatsApp use certificate pinning?

Does WhatsApp use certificate pinning? I found a post by Preatorian Security from February 2014 that points the lack of certificate pinning as a major security problem, and mentions: Update 02/21/...
1
vote
1answer
57 views

Why mobile phone app sessoins are never timed out?

This question talks about the session time out for web applications. I have noticed that most mobile phone apps I use never ask me to login again after the first login. These mobile apps call web ...
4
votes
1answer
42 views

What kind of information gets shared while pairing a device using Bluetooth? [duplicate]

I am using LGKp500 phone. My software version is KP500AT_V10h. Its a simple touch phone. It's not a smartphone. Now can anyone tell me, when Im pairing my phone with another phone using bluetooth (...
0
votes
0answers
15 views

Which bytes in an OTA Command Package are encrypted with the KIc by 3DES CBC?

I have an un-ciphered OTA message in clear and I am trying to cipher it so it becomes secure data. The cryptographic checksum is already generated as part of the un-ciphered OTA message. I have the ...
-1
votes
1answer
30 views

How to implement security with Azure Mobile Services Back-end?

I have a mobile application which relies on a Windows Azure Mobile Services Back-end. I want to tie down some security vulnerabilities. For example, someone can currently access all my records, modify ...
-1
votes
1answer
32 views

What are some good ways to test our back-end application? [closed]

We are just a few weeks to launch our mobile application for a few costumers to validate and test. This application is directly bounded to our server, which runs a back-end RESTful application. What ...
0
votes
1answer
55 views

Telegram messages in group are seen immediately [closed]

We have a small friends group using Telegram Messenger without any bot attached to group. When we send message in this group it is always seen (double checked) immediately even at midnight and hours ...
0
votes
2answers
76 views

Will blacklisting a stolen iPhone prevent the thiefs from getting access to my data?

My iPhone was stolen. I have AT&T. I did a factory reset, but believe my phone was turned off because I never got confirmation that the phone was erased. If the person who stole the phone took out ...
0
votes
1answer
34 views

What things can the other person see about my phone when I pair it using bluetooth?

I need to know some correct information about bluetooth pairing technology. What are the things which becomes visible to the person about my phone when I'm using bluetooth from my phone and pairing it ...
3
votes
3answers
163 views

Is it safe returning or giving away a sim card you already used?

I bought a prepaid sim card and used it on my android, but i had a problem using it and would like to return it. Is it safe to do so? I'm wondering if it could now contain my personal information ...
9
votes
1answer
386 views

Hacking/Sniffing/recording GSM like Karsten Nohl

For a course at college, I wanted to reproduce the attack on GSM shown in this video by Karsten Nohl: https://www.youtube.com/watch?v=0hjn-BP8nro. From what I understand he used an USRP radio to ...
3
votes
0answers
28 views

In mobile, can “Early Media” be sent from the phone?

Early Media, aka in-band information, is sent from the network to the calling phone in some circumstances, to provide alternative tones or extra information about the status of the call. In GSM this ...
6
votes
2answers
442 views

Prevent phishing attacks through abuse of IOS URL scheme

I am building an IOS application that will have the following flow: A user completes registration from the web. Upon completion of registration, a link is sent to his email. Once the link is clicked ...