Latest Podcast



Featured Articles

Tuesday, March 30, 2010

The mobile web and your personal information

James Rosewell writes:

The mobile techie community has known about mobile networks and indeed some handsets providing unique information about mobile devices and customers for a long time. Collin Mulliner, a graduate student at the Technische Universitat Berlin, has recently bought the issue to the attention of the public during a talk at the CanSecWest conference in Vancouver.

Information such as IMEI and Mobile Phone Number is passed to web servers accessed by a mobile device or Mobile Network Operator (MNO) proxy server in hidden fields called HTTP Headers. The amount of information, format and ultimately usability of the information varies between MNO and mobile device. Practically, the inconsistency of the information makes it of little practical use to web sites. The apparent random nature of the information provided indicates MNOs haven’t really thought through how they’re configuring their gateways and proxies.

The following table shows the HTTP Header (hidden fields) provided by a mobile request received at thefonecast.com yesterday. Notice the x-up-calling-line-id field that contains the mobile number of the requesting device. (We've removed the mobile number from this example). This particular request was provided via the ZXWAP Gateway from ZTE.

 

Header Field
Value
Connection
Keep-Alive
Via
ZXWAP GateWay,ZTE Technologies
Accept
text/html,text/css,multipart/mixed,application/java-archive, application/java, application/x-java-archive, text/vnd.sun.j2me.app-descriptor, application/vnd.oma.drm.message, application/vnd.oma.drm.content, application/vnd.oma.dd+xml, application/vnd.oma.drm.rights+xml, application/vnd.oma.drm.rights+wbxml, application/x-nokia-widget, */*
Accept-Charset
iso-8859-1, utf-8; q=0.7, *; q=0.7
 
Accept-Encoding
gzip, deflate, x-gzip, identity; q=0.9
 
Accept-Language
en;q=1.0,id;q=0.5,vi;q=0.5
Host
wap.socmobi.com
User-Agent
Mozilla/5.0 (SymbianOS/9.2; U; Series60/3.1 Samsung/SGH-i450/DBGL3 Profile/MIDP-2.0 Configuration/CLDC-1.1 ) AppleWebKit/413 (KHTML, like Gecko) Safari/413
x-up-calling-line-id
XXXXXXXXXX

The real point is that MNOs are seen to be taking liberties with customers personal information. There are many practical uses to providing this personal information “behind the scenes”. For example:

·    A web site that requests a telephone number can default the telephone number field to the mobile number provided by the mobile network reducing the amount of data the user needs to enter.

·    Multiple interactions can be related to one another without requiring explicit authentication.

On a darker note, once a malicious web site has a mobile number, the text message inbox would become the next target for spam.

Many people will be unhappy with this personal information being provided without consent. MNOs need to establish a clear and consistent policy around the dissemination of such information and ensure customers are in control of the personal information their mobile phone is giving out.

 

Print
Author: The Fonecast
0 Comments
Rate this article:
No rating

Categories: Networks and operators, OpinionNumber of views: 7629

Tags: security opinion internet

Leave a comment

This form collects your name, email, IP address and content so that we can keep track of the comments placed on the website. For more info check our Privacy Policy and Terms Of Use where you will get more info on where, how and why we store your data.
Add comment

Opinion Articles

How AI technology is transforming the smartphone experience

How AI technology is transforming the smartphone experience

From improved performance to personalized recommendations, AI is enhancing the functionality and usability of smartphones for users

By incorporating advanced algorithms and machine learning capabilities, AI can help to optimize a smartphone's performance, providing users with a faster, more efficient and user-friendly experience.
Author: The Fonecast
0 Comments
Article rating: No rating
Whatever happened to all my tech?

Whatever happened to all my tech?

Mark Bridge revisits his mobile technology reviews

Mark Bridge writes:

I've been taking a look back at the devices I've written about during the past few years. Some are still faithful companions, others... well, let's just say my faith was misplaced.
Author: The Fonecast
0 Comments
Article rating: No rating

Predictions for 2016: Network Function Virtualisation, 4G throttling and video calling

Mark Windle, head of marketing at OpenCloud, predicts that this year’s reduction in the number of traditional telecoms operators in some countries will provide an opportunity for other operators to innovate and capture market share in 2016.

He says next year will be a year of rapid change for telecoms… whether it’s MVNO disruption, competitive tariff pricing or simply defence from the ‘dark art’ of hacking.

Author: The Fonecast
0 Comments
Article rating: No rating
Kapture review: the audio-recording wristband

Kapture review: the audio-recording wristband

A 'recording watch' that links to your smartphone

Mark Bridge writes:

The most memorable moments in life often go unrecorded. You don't have your camera in your hands. Your finger is still hovering over the 'pause' button on your audio recorder. Or you were simply too busy experiencing whatever was happening. It's all about the one that got away.

That's where Kapture can help.

Author: The Fonecast
4 Comments
Article rating: 4.0
Making mobile websites work better

Making mobile websites work better

Device detection and responsive design explained

Mark Bridge writes:

James Rosewell shows me a colourful roll of paper that's the width of an iPhone but well over three metres long. When I look closer, I can see it's a printed copy of the Wall Street Journal's mobile website. That's a lot of scrolling to do... and a pretty unfriendly user experience for anyone reading the news online. Why does it work so badly?

Author: The Fonecast
1 Comments
Article rating: 4.0
RSS
123578910Last

Recent Podcasts

A podcast packed with smartphones galore... from Samsung, Sony, Microsoft and Motorola

Podcast - 10th September 2014

James Rosewell and Mark Bridge return from their summer break with a podcast full of smartphones and smart watches.

As well as products from Samsung, Sony, Microsoft, Motorola, HTC and Kazam, there's talk of Opera's new browser deal, a potential change on the UK high street... and a mobile app that connects to a Bluetooth toothbrush for improved toothpaste coverage.

Author: The Fonecast
0 Comments
Article rating: No rating

We review the CAT B100 rugged mobile phone

Podcast - 30th July 2014

Mark Bridge takes an in-depth look at the CAT B100 rugged phone from Bullitt Mobile.

The CAT B100 is designed to withstand rather more than everyday bumps and knocks - which is why Mark drops his mobile phone on the pavement, submerges it in his washing-up bowl and shuts it in the freezer.

Author: The Fonecast
0 Comments
Article rating: No rating

Microsoft cuts its mobile staff, Apple finds a new partner and Yahoo! makes an acquisition

Podcast - 23rd July 2014

We start this week's podcast with news that thousands of Microsoft's ex-Nokia employees are losing their jobs.

Other topics for discussion include the new Apple and IBM partnership, Yahoo's acquisition of Flurry, regulating mobile games, improving rural mobile coverage, BT's new phone service and some management movements.

Author: The Fonecast
0 Comments
Article rating: No rating

Florent Stroppa of OnMobile talks about the state of the mobile telecom industry, from network deals to smart wearables

Podcast - 18th July 2014

In this podcast Mark Bridge talks to Florent Stroppa from mobile value-added service specialist OnMobile about the state of the mobile industry in 2014.

They discuss the dominance of Apple and Samsung, network consolidation, the new Amazon Fire smartphone, smart wearables and much more.

Author: The Fonecast
0 Comments
Article rating: No rating

National security, phones for children, a new UK mobile network and a change of name

Podcast - 16th July 2014

This week's mobile industry podcast begins with a quick look at the UK government's emergency legislation affecting fixed-line, mobile phone and broadband traffic.

We then talk about Microsoft's plans, a new virtual network from the Post Office, Samsung's renamed app store, budget 4G smartphones, a wearable phone for children and some misleading advertising.

Author: The Fonecast
0 Comments
Article rating: No rating
RSS
123578910Last

Follow thefonecast.com

Twitter @TheFonecast RSS podcast feed
Find us on Facebook Subscribe free via iTunes

Archive Calendar

«March 2024»
MonTueWedThuFriSatSun
26272829123
45678910
11121314151617
18192021222324
25262728293031
1234567

Archive

Terms Of Use | Privacy Statement