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

learn more… | top users | synonyms

10
votes
3answers
10k views

How secure is Android's facial recognition?

Android supports using facial recognition for unlocking your phone. How secure is that mechanism? For instance, if someone has a good quality picture of your face, can they defeat the facial ...
15
votes
3answers
672 views

What prevents people getting charged over NFC in crowded places?

I don't have an NFC-enabled device and I couldn't find any information about this in Google. What is it that protects me against an attacker with a portable NFC terminal charging payments by just ...
2
votes
2answers
1k views

Guidelines for secure iPhone application development

Are there any security guidelines for development and assessment of (native) iPhone applications?
2
votes
1answer
32 views

Possible for Lync clients 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, ...
0
votes
1answer
30 views

Securing Data at Rest in Android

Here's a situation. I am the author of an app that allows my customers to stream videos on their local android device. I also allow them to download the video and store it locally on their android ...
2
votes
0answers
43 views

I need a secure laptop tethered to a mobile internet connection. [on hold]

I invent things. Think energy, IT security algorithms, etc. I'm actively targeted for information breaches by the largest corporations on the planet. All paranoia aside... I'd like a secure ...
2
votes
1answer
31 views

Is this system of authentication secure for a mobile app? What can I do to improve it?

Users authenticate with their phone number, get a pin text, and if it is correct, they get an access token. Store the access token in a DB in a Token model. The client always sends the access token in ...
51
votes
7answers
14k views

How hard is it to intercept SMS (two-factor authentication)?

A lot of two-factor authentication mechanisms use SMS to deliver single-use passphrase to the user. So how secure is it? Is it hard to intercept the SMS message containing the passphrase? Do mobile ...
1
vote
1answer
47 views

Is CloudKit or iCloud suitable for storing PII?

iCloud is Apple's storage technology that copies data from one iPhone and shares it with every other device. CloudKit is a similar technology that allows (from what I can tell) the partial ...
3
votes
1answer
37 views

Are SIM proactive commands secure?

A SIM card can initiate some communication with a mobile device with so called "proactive commands" (chapter 6 of http://www.etsi.org/deliver/etsi_gts/11/1114/05.04.00_60/gsmts_1114v050400p.pdf). ...
0
votes
0answers
26 views

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

From what I can tell, I 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 ...
2
votes
0answers
54 views

Are old Android WebViews a risk to Activesync email, and how do I block old devices?

I'm concerned that old versions of Android may be hacked through unpatched WebViews (in PhoneGap and other apps), exposing Activesync email data, and other sensitive information. To mitigate this, ...
1
vote
1answer
36 views

Reading encrypted data before sent to remote server

I'm developing a mobile app (Android only for now) to provide a disposable e-mail service to users. Users will be given temporary e-mail addresses so they can receive and read e-mails for a certain ...
2
votes
1answer
108 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 ...
1
vote
2answers
245 views

In theory, can a restricted-use ToR network be created with “Verifiable Encryption”? How should I approach learning it?

I have mobile devices (low power, low bandwidth) need to act as a proxy for certain types of P2P encrypted data, and I want to make sure that each phone's service isn't abused. To that end I need ...
1
vote
3answers
331 views

How to intercept and analyze mobile SSL application traffic?

What is the best way to analyze requests sent by a mobile application over SSL? The communication protocol is not necessarily HTTP/S so intercepting them with BURP/ZAP/Fiddler or any other HTTP proxy ...
2
votes
1answer
88 views

IP address, iphone, Snapchat

My child is being accused of doing some improper things via Snapchat, but he swears that he did not do anything, and he is the type of person who probably would not. The only thing the police are ...
0
votes
2answers
159 views

Mobile App Security vs. Traditional PC Desktop Security In The New Era

I have been using a Windows PC for many years now. Since Android has come to market, I have been very wary of installing apps that require unrelated permissions. Obvoiusly, these extra permissions ...
3
votes
1answer
132 views

REST API stateless authentication using social login

I am implementing a REST API for our mobile applications in which user will login using the SDKs of various social media. Currently, the login strategy is as follows: The token(s) (access_token in ...
1
vote
0answers
30 views

Does Activesync certificate authentication replace a password, or act as 2 factor?

I am looking at Activesync authentication and want to know if Certificate Authentication ignores a client username and password or Certificate Authentication requires a username and password ...
0
votes
1answer
28 views

Audio not playing on Android (Kitkat 4.4.2 on LG G Pro 2 D838) via HTTPS [closed]

I am having issues playing an audio file on the chrome browser! This audio file plays on the chrome browser on my mobile LG G Pro-2(D838) running Kitkat 4.4.2 without any issues. But when i uploaded ...
13
votes
3answers
4k views

Smartphone / GSM Sniffer

This question would be in the category of SmartPhone Sniffers. So we have sniffers that can show the packets that are being sent across a wired or wireless (802.11) network. I am just performing a ...
3
votes
1answer
34 views

Securing 2 factor data from apps that are co-located on the same device?

Several apps such as GMail, Coinbase, Yahoo and others require the use of the mobile device to gain access to the data within the app. For example Gmail requires TOTP in Google Authenticator ...
0
votes
1answer
25 views

how does mdm (mobile device management ) work in byod environment to control the camera?

what i want to know is how mdm (mobile device management ) works in byod environment to control the camera from clicking pictures of a printed document?is there a way other than to shut off the ...
11
votes
2answers
1k views

Caller ID Spoof and Text Spams – How do they work?

A lot of people will have at some point received a spam text offering some sort of help via a debt settlement order, or help claiming for an accident that they have never had. I’ve noticed these are ...
5
votes
1answer
405 views

How to protect from caller-id spoofing?

Yesterday, I listened about caller-id spoofing and was left astonished as it's misuse can result in severe consequences for victim. Please tell me how to protect myself from this prank and is there ...
5
votes
3answers
800 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 ...
1
vote
1answer
131 views

Mobile, WebServices and SSL

I just started dipping my feet into security and SSL. I looked at various videos to try and understand how the magic happens and I have the general idea now, but most of them deal with it taking the ...
1
vote
2answers
99 views

How to secure Epson Beamer?

I work in a school and we have several Epson Beamers but some of our students have download an application for their mobile (with infra-red and WiFi connection) and they now have remote control and ...
0
votes
1answer
29 views

From a deployment and OPS perspective, should a S/MIME 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? The encryption key needs to be present on each device that is used to ...
1
vote
1answer
119 views

User Authentication for a public website in 2015 [closed]

I am creating a new website for online shopping in .net and was wondering if i have another option beside Forms authentication to validate the users in a safe and secure way (this has been around for ...
0
votes
1answer
38 views

Can standalone malware survive on current mobile devices? [closed]

Can malware run on mobile devices? I don't see how it would be able to (given that those devices have fine-grained permissions and sandboxing). Unlike on a desktop OS, malware cannot access registry ...
3
votes
1answer
66 views

Why do mobile operating systems not implement a way to deny permissions to an app?

Android and iOS (afaik) implement a relativly fine-grained permission schema for their apps. But as I user I only have the change to acceppt all or nothing. When I think about it, it shouldn't be a ...
37
votes
7answers
4k views

Why do mobile apps have fine-grained permissions while desktop apps don't? [duplicate]

Androids apps use fine-grained permissions for security reasons, iOS apps (afaik) do it as well. Windows 8.1 applications don't have a permission schema like that, all Linux versions which I have ...
2
votes
0answers
171 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 ...
4
votes
3answers
376 views

What are the best practices for maintaining privacy on a non-jailbroken iOS device?

iOS, like most other mobile OSs, has the potential to leak significant chunks of personal information to 3rd-party apps and to ad and tracking networks used by those apps, which in turn also has the ...
25
votes
3answers
4k views

Why do I need to hide my phone's IMEI

If it is a secret then why is it visible on the box, invoice and the back of the phone? If it is not a secret then why does it have to be blurred when it gets posted online?
0
votes
1answer
60 views

Security tradeoffs while designing a mobile Web Service API

I'm not a security expert but I want to ask about tradeoffs in a web service API I'm designing for mobile apps. It is an API which tracks users' locations so yes, the data is reasonably sensitive. ...
0
votes
0answers
25 views

3GPP Generic Bootstrapping Architecture and IoT/M2M

Is the 3GPP GBA actually in use in some concrete IoT/M2M big deployments? Apparently the OneM2M specs TS-0003-Security_Solutions include GBA in the security stack for M2M and IoT: what do you think it ...
13
votes
2answers
38k views

Is it possible to make a phone call appear to come from another phone, even to the network provider?

Quick Question Is it possible that I could call a mobile number, but have the call forwarded through another number active on a different phone that someone else has? I have had unlimited access to ...
3
votes
3answers
2k views

Do telecom operators listen to every phone calls

I usually don't answer unknown numbers. Few days back i got couple of calls from unknown numbers and i didn't answer it. That evening i had contacted one of my lady friend and the next day i got a ...
4
votes
2answers
126 views

Difference/Relationship between data leakage analysis and vulnerability analysis?

What is the difference/relationship between data leakage analysis and vulnerability analysis? How much and what kind of vulnerability testing is required for data leakage analysis? I have to give ...
1
vote
1answer
91 views

OTP for syncing mobile device

Scenario: a web app with two-factor authentication using username/password and hardware OTP. Once logged into the app, one of the app modules should be used in a tablet or any mobile device without a ...
91
votes
9answers
53k views

Why can we still crack snapchat photos in 12 lines of Ruby?

Just came across this bit of ruby that can be used to decrypt snapchat photos taken out of the cache on a phone, apparently adapted from here. To my surprise, it worked no problem, considering the ...
1
vote
1answer
206 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 ...
1
vote
1answer
341 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 ...
0
votes
1answer
55 views

Is there any secure way to transfer data between mobile phones without Internet? [closed]

Assume that I don't have any Internet access in my country. The only thing that I have is a mobile phone with a 3G or 4G SIM card inside. The mobile operator didn't provide any Internet access also. ...
3
votes
1answer
247 views

SIM card - Cryptography

I would like to have general infos about crypto and commom SIM card in mobile phone(I know there may be different implementations, technos according to the operator...). Is crypto used only for ...
2
votes
0answers
30 views

Why would my SSO information be cached on my iphone?

I develop a lot of internal applications/websites for my work using our standard SSO. It uses SAML2 and has a few different levels of security available. We have vendor who is using it for one of ...
0
votes
2answers
6k 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 ...