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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0
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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 ...
1
vote
2answers
81 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
249 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
558 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
320 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
50 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
142 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?
72
votes
7answers
25k 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
116 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 ...
3
votes
1answer
239 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
103 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 ...
9
votes
4answers
3k 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
62 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 ...
0
votes
3answers
238 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
593 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
388 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 ...
7
votes
2answers
27k 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
108 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
105 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
145 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
265 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
69k 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
79 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
56 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
92 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 "...
3
votes
1answer
179 views

Dangers of WAP billing?

Recently I clicked an ad by mistake on my phone and it routed me through different pages and popups automatically. On of the pages had my mobile phone provider in its URL and WAP-billing. So I ...
4
votes
0answers
78 views

Are mobile phone calls cached by the network? [closed]

While transmitting a phone call from one mobile phone to another across several carriers, I assume it may be necessary to buffer the audio data for a few seconds. My questions: a) Is it true, ...
10
votes
2answers
2k views

Firewall on smartphones

PCs communicate with the help of ports,eg. HTTP communication takes place over port 80. Due to the nature of these ports, an open port is an avenue for an attack. That's where firewalls come in. The ...
1
vote
1answer
136 views

Can the location of a cellphone be pin-pointed?

If a person uses a SIM card that is pre-rica registered (meaning it is not registered on his name but the supplier), can you pin-point where a particular message or call was made from? For example: ...
18
votes
4answers
11k 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 ...
12
votes
1answer
158 views

How can mobile sign-on be secured from imposter authentication screens?

History seems to have come almost full circle where old issues are shown in new/emerging technologies. Background If you trust the operating system, Windows originally had the Control - Alt - Delete ...
4
votes
1answer
934 views

iOS application pentest without jailbreak

Is it possible to run a security assessment on an iOS application using a non-jailbroken device? My device was recently restored (recovered - no SHSH blobs) to iOS 8.4.1 (as Apple doesn't like ...
0
votes
1answer
104 views

A “hardware” random number generator for mobile phone

I have been trying to write a random number generator using the hardware of the phone. After reading other people's attempts and tried some. I came up with the following to generate the seed: Play ...
4
votes
3answers
464 views

How is “Touch Jacking” prevented on iOS, Android, and Win 10 - touch?

I'm looking at the security of both iOS and Android from a Touch-jacking security perspective. In other words, I expect that an application can be in a secure state to ensure that no overlays, screen ...
1
vote
0answers
167 views

How to know our mobile number or phone has been hacked?

We have a Xiaomi Redmi 2 phone and a sim card in it. Yesterday we started receiving angry and swearing text messages. we called the numbers back and apparently a mass angry text messages have been ...
1
vote
3answers
417 views

Sniffer attack on mobile [closed]

I have Nokia lumia 625. And a guy hacked it using sniffer. That's how much I know about it. He has access to all my online texts(eg. Whatsapp, messenger etc) . and also to offline carrier text ...
0
votes
1answer
105 views

Default Encryption - A Panacea or Placebo

I wrote this on LinkedIn - Discrete Discretion My first question is: Is it accurate to say that default encryption is a placebo? Will default encryption only make end-users think they are secure ...
2
votes
0answers
90 views

Does the Java version matter when compiling an Android, Amazon, or Blackberry app? (for security reasons)

I need to compile an app that will run on an Android, or Android compatible system (Android, Amazon Fire, or Blackberry). The developer documentation says that JDK 7 is needed, however there are ...
1
vote
1answer
152 views

Does the carrier network autheticates itself to the SIM card?

From my understanding this is how SIM authentication works: When the mobile device starts up it obtains IMSI from the SIM card and send it to the operator network Operator network finds the Ki(128 ...
2
votes
1answer
218 views

Rootkits, Bootkits detection and protection and Firmware alteration

I was hacked in an extremely intrusive manner in late 2013. Ever since then, not a day has passed where I don't think about this. A lot. My question has to do with the likelihood of the attackers ...
1
vote
1answer
561 views

Is it possible to secure an Android Intent from other calls from apps?

I'm looking at the architecture of Android and want to come up with a service that allows for multiple applications (3rd party) to call a local android service and fetch data. Think of this as a ...