January 19th, 2008 — MobMe
The SMS widget is becoming very popular and Im getting many messages and also queries about the same. Ill make some clarifications about the same now.
The Widget is completly free to use and we do intend to keep it free forver. This is our gift to the blogging community, which has helped us a lot, sharing their knowledge and experience.
The widget is completely safe to use and your mobile number will never be revealed to the sender.
Bloggers, please promote the widget by blogging about it.
Here are some messages that I got within 24 hrs of installation of the widget.
Hi : Lucky
Is this widget free for all time or introductory offer ? Can I blog about this in crankup.net, Shoban : 9895******
Testing … is this what you want as a wordpress plugin ???? : Tony
Chummsss…..wrk chyuvoo nokuvaaa:) : Prema
Hello Its me : Jillmon
This wideget is brought to you by www.fastalerts.in
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January 18th, 2008 — MobMe
Fellow bloggers and readers,
Check out the widget on the right side of this post. You can SMS me directly from that widget. Type in your comments there and Ill get them on my mobile instantly.
We are now giving away free widgets to bloggers and publishers. If you need a similr widget on your blog or website send a mail to prema@mobme.in with your mobile number and bog address. She will send you a customised widget for you.
This free service is brought to you by www.fastalerts.in - Indias most popular online bulk SMS application.
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August 24th, 2007 — GSM/CDMA
According to Global System for Mobile Communication (GSM Standard), the size of each SMS is limited to 160-characters in order to avoid overloading in the standard forward-and-response operation of the SMS server. Larger content of SMS can be sent but they will be segmented over multiple messages, which lead to extra charges among the mobile phone users.
Therefore Euzer Technologies Sdn Bhd has invented a novel and powerful SMS compression formula which we have filed patent at Intellectual Property Corporation of Malaysia (MyIPO) at 15th June 2007. With the 50% compression ratio that can be achieved by ZMS, mobile consumers can send up to 280 characters in a single SMS.
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August 23rd, 2007 — GSM/CDMA
In an earlier post we saw how GSM networks are jammed when the SMS traffic increases. Now some smart kids can use this loop hole to attack GSM networks and cause service outage in targeted areas. This is very much similar to DOS (Denial of service) attacks in computer networks.
Even though such a possibility exists, no one can bring down the entire service down. But its very much possible to bring down certain areas of a network, lets say an area covered by a tower.
The first step is collecting mobile numbers of subscribers in that area. Attacker can use many innovative schemes to collect mobile numbers. Some methods are described here.
Once you have enough numbers in a particular region or under a tower you can start sending SMS messages to all those numbers simultaneously. An SMPP gateway is needed for this. Many companies are providing gateways.
With the help of some spoofing techniques and zombie servers an attack can be launched quite easily. Zombie servers can bypass almost all operator spam detection mechanisms. In india, bulk sms is a huge market and I dont think there are any spam detection mechanisms implemented.
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August 23rd, 2007 — GSM/CDMA
Most providers assign certain number series to certain places. All the SIMs sold at a particular location at a particular period of time can be in the same series. With a little bit of research we can identify potential numbers in a location.
Another method is to gain access to corporate databases, where customer numbers will be stored. Modern banks provide SMS alerts, and they are a good place to start looking. If you have a friend inside its really easy pulling up mobile numbers.
Another place to look is social networks, but will require some amount of programming skills. Many provide their mobile numbers in their orkut profiles. A small tool can dig out all the mobile numbers in a particular community, or a particular friends list.
Some advanced techniques would be to use a mobile worm or a virus, which can read contact lists from mobile phones and send them to a central server without the knowledge of the user. Some bluetooth worms can do this.
Once you have enough numbers with you, you need to refine the list by finding out the genuine numbers. This can be achieved by sending a test message with a fake sender ID to all the numbers and wait for delivery reports. All delivered numbers can be used for the attack.
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