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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28
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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
165 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
46 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
84 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
72 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
110 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
9k 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
167 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
13k 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 ...
8
votes
5answers
7k 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
871 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
103 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
35 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
80 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
83 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
25k 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 ...
1
vote
2answers
71 views

How is generating payment Tokens secure in Mobile development?

I'm using Stripe for in app payments in my mobile app project and I don't quite understand how any app is secure if the user inputs there card info (with or without stripe) if it's not over HTTPS the ...
13
votes
4answers
12k views

What SSL key should I make for IIS: RSA or DH? What bit length is appropriate?

I'm creating an SSL cert for my IIS server and need to know when I should choose the Microsoft RSA SChannel Cryptographic Provider or the Microsoft DH SChannel Cryptographic Provider. Question 1 Why ...
3
votes
3answers
234 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 ...
1
vote
4answers
520 views

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

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 ...
4
votes
2answers
285 views

How to trace source of clickjacking attack within a website using developer tools?

When surfing a popular Wordpress website on my mobile, clicking on a link to an article within would sometimes open a new window to a malicious website or launch the Apps Store. I am interested to ...
1
vote
2answers
45 views

Is it PCI-compliant/kosher to send a credit card number to a 3rd party sever from a mobile client?

I am building a mobile app, and part of the the functionality of the app is to place an order with a 3rd party. The 3rd party server accepts a credit card number string. Can I build a mobile client to ...
6
votes
1answer
90 views

Methods to Monitor Ads For Malware on Mobile Devices

I've noticed that malware being introduced to a mobile application or web application through advertisements, unknown to the developer of the application, is becoming increasingly popular. I've been ...
-1
votes
2answers
126 views

Someone received a text from my iphone. I don't even have the number the text was sent to [closed]

My son said two of his friends received a text from my phone, showing my phone number. I don't have these boys phone numbers in my phone or know their names. How did this happen?
69
votes
7answers
24k 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 ...
2
votes
2answers
110 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
1answer
185 views

Privacy issues when mobile app has access to phone number and contacts

It seems that when it comes to mobile apps convenience defeats security - always. In particular all messaging/communication apps seem to require to have access to your contacts on the phone and your ...
2
votes
1answer
98 views

How is Smurf Toolkit possible? [closed]

We've probably all heard about the Smurf Toolkit by now. It's the GCHQ's way of tapping phones revealed by Edward Snowden. So supposedly they can take over your phone (even power it off/on!) by simply ...
7
votes
4answers
2k views

Securely erase personal data from android phone before selling

I have just sold online my old Nexus 5 (Android Lolipop) and need to post it tomorrow morning. I would like to make sure the new owner can't access my files. What should I do?
2
votes
0answers
58 views

Can a Tsunami early warning turn “on” remotely some cell phones in Japan?

In Japan, some televisions and radios seem to be capable of getting out of sleep mode if a tsunami warning is issued. If tsunami warnings are issued, the Emergency Warning Broadcast system ...
5
votes
1answer
2k views

How are shopkeepers getting the MAC address of wifi enabled smartphones?

It is clear that some big malls are tracking all the wifi-enabled mobile phones before they are connected to the network... How can this be done? I have a similar issue... how to get the MAC address ...
3
votes
3answers
118 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 ...
0
votes
3answers
208 views

How can i prevent my phone from spying through sms

Recently while reading up a article over here ,The following were the summary : hacking suite dubbed Smurf Suite, it can hack any mobile by sending an encrypted text message So based on the ...
2
votes
5answers
587 views

Is the newly adopted NFC technology going to be safe?

I got sent a link today talking about how the business card company "Moo" is implementing a chip into their cards that will allow NFC connections to do many things such as share contact info, open a ...
2
votes
2answers
293 views

password grant without client secret?

I'm struggling to decide what to do to get an access token from a mobile app. I'm sure this has been covered before, but I can't find it. I've enabled resource owner credentials grant on my oauth2 ...
7
votes
5answers
5k views

Is there a reason to protect SIM with PIN?

If the phone would be stolen then the SIM card will be thrown out by thieves just after the theft so that they can't be found. If the phone would be lost then it will be harder to find an owner for ...
6
votes
2answers
22k views

What happens if an attacker steals my phone's IMEI number?

I have some questions regarding IMEI numbers and data and identity theft. While searching online I have found many conflicting answers regarding this topic and would like some clarification if ...
7
votes
3answers
6k views

What makes the Blackberry device and network more secure?

One of Blackberry's strongest assets is the "network" that it uses. Can someone explain, or link to technical information that covers what this secure network is, and what it does better than the ...
0
votes
0answers
86 views

Cellular Mobile ID number Sniffing

As far as I know, cell phones intermittently transmit a Mobile ID number to inform surrounding cell towers that the phone is available. Is this transmission encrypted, or would one be able to ...
2
votes
2answers
96 views

How can Authenticity be achieved in SMS or Text Messaging?

What tools or information is needed to verify the authenticity of a SMS message... or to send one so that such authenticity is intact? This answer describes something as a "message center", but I'm ...
7
votes
3answers
139 views

Are there any severe concerns of sending the user's login and password with each HTTPS request?

Due to certain requirements/constraints, I'm wondering about sending user login and password with each request. This somehow doesn't feel very good to me, though I think for my particular case, it ...
-1
votes
2answers
237 views

Will it matter if I give to someone the IMEI or Serial number of my device? [duplicate]

Just as the title says, if I have for example a pocket wifi will it matter if I give the IMEI or serial number to someone who ask for it? Or maybe a crucial device that can affect your health like ...
16
votes
3answers
65k 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 ...
0
votes
1answer
69 views

Key management: Detecting that a key has been compromised?

I am looking at communication between our iOS/Android mobile app on the one side, and our RESTful web services API on the other side. From the server side, I have to assume that anything I receive is ...
1
vote
2answers
54 views

Detecting different jailbreaks

I am using an application that shuts down and quits when it detects a jailbroken phone. Is it possible that this application only detects some kinds of jailbreaks and not others? Or do applications ...
3
votes
4answers
2k views

If a thief has the phone in their possession, how can Password Recovery be implemented securely?

Standard password recovery involves sending a password reset mechanism to the user; either to email, sms or telephone call. However, if a phone has been stolen the thief has full access to these ...
2
votes
1answer
91 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 ...
9
votes
3answers
2k views

Are there any established secure coding guidelines available for mobile devices?

I am looking for secure coding guidelines especially for mobile devices (Android and iOS). The languages I am interested in are Objective-C, JAVA and HTML5. Would it be a good approach to use a ...