1. THREATS TO MOBILE NETWORK SECURITYby
Gadde. RAVITEJA

2. CONTENTS: Introduction Threads Types of threads Protecting your phone
conclusion
Contents

3. Introduction:

4. Can virus infect the mobile phones?
Can mobiles

5. The answer is YES.
The first known cell-phone virus appeared in 2004 is cabir.
The chance is increasing day by day and recent hoax virus, Spam SMS worms is an evidence of it. Due to the financial aspects associated with wireless communications, this subject is under through research now. 

6. Cell-phone Virus Basics:
A cell-phone virus is basically the same thing as a computer virus .an unwanted executable file that "infects" a device and then copies itself to other devices. But whereas a computer virus or worm spreads through   attachments and Internet downloads, a cell-phone virus or worm spreads via Internet downloads, MMS attachments and Bluetooth transfers.
The most common type of cell-phone infection right now occurs when a cell phone downloads an infected file from a PC or the Internet ,or phone to phone.

7. Threats:
A mobile phone user especially smartphone user is exposed to various threats when they use their phone. In the last two quarters of 2012, the number of unique mobile threats grew by 26.1%, according to ABI  (Allied Business Intelligence Research).These threats can disrupt the operation of the smartphone, and transmit or modify user data
Problems to mobiles Dew to these threads
Data : data management, therefore they may contain sensitive data like credit card numbers, authentication information, private information, activity logs.
Identity : To steal the identity of the owner of a smartphone to commit other.
Availability

8. Different types of threats or attacks on mobile security
Attack based on communication (SMS and MMS)
Attacks based on communication networks
Attacks based on vulnerabilities in software applications
Password cracking
Malicious software (malware)

9. Attack based on communication (SMS and MMS)
Infected text messages sometimes steal the subject line from a message you have received from a friend(chinese characters), which of course increases the likelihood of your opening it.
A virus that spreads via MMS gets into the phone's contact list and sends itself to every phone number stored there.
In all of these transfer methods, the user has to agree at least once (and usually twice) to run the infected file.

10. Attacks based on communication networks
Attacks based on the GSM networks:
These are form dew to the miss matching of encryption algorithms. The attacker may try to break the encryption of the mobile network and can able change the temporary identity(TMSI) . Once the encryption algorithm of GSM is broken, the attacker can intercept all unencrypted communications made by the victim's smartphone.
Attacks based on Wi Fi: WAP bridges the mobile world and the Internet

11. Attacks on Mobile WAP network

12. Principle of Bluetooth based:
The WAP protocol is now the leading standard for information services on wireless terminals like digital mobile phones. By the use of WAP, there is a possibility of wireless devices like mobile phones, getting infected with virus and worms.
Principle of Bluetooth based:
The user receives a virus via Bluetooth when the phone is in discoverable mode In this case, the virus spreads like an airborne illness.

13. Attacks based on vulnerabilities in software applications
Web browser : Internet downloads - The virus spreads the same way a traditional computer virus does. The user downloads an infected file to the phone by way of a PC or the phone's own Internet connection. This may include file-sharing downloads, applications available from add-on sites (such as ringtones or games) and false security patches posted on the Symbian Web site.

14. Operating system:
Problem in updating os

15. Password cracking:
the possibility of cracking a device's password through a smudge attack. It is literally imaging the finger smudges on the screen to discern the user's password . The researchers were able to discern the device password up to 68% of the time under certain conditions.

16. Malicious software (malware):
A malware is a computer program that aims to harm the system in which it resides.
The three phases of malware attacks
Infection
Accomplishment of its goal
Spread to other systems
Examples of malware
Viruses and trojans
Spyware

17. A Trojan is a program that is on the smartphone and allows external users to connect discreetly . ex; red browser based on java, spyware based on simbion
A worm is a program that reproduces on multiple computers across a network.
A virus is malicious software designed to spread to other computers by inserting itself into legitimate programs and
running programs in parallel.

18. Protecting Your Phone Spam filters.
Turn off Bluetooth discoverable mode
Check security updates to learn about filenames you should keep an eye out for.
Install some type of security software on your phone.
Memory Protection.
Spam filters.
Not always changed Default settings.

19. Conclusion:
The best way to protect yourself from cell-phone viruses is the same way you protect yourself from computer viruses: Never open anything if you don't know what it is, haven't requested it or have any suspicions whatsoever that it's not what it claims to be. That said, even the most cautious person can still end up with an infected phone.

20. Sources
1."Cell-Phone Viruses." TechnologyReview.com. e/feature_emerging.asp?p=9
2."Cell phone virus turns up the heat." News.com _ html
3."Clock's ticking on phone virus outbreak, experts say." News.com. 2C+experts+say/ _ html?tag=mainstry
4. European Telecommunications Standards Institute (2011). "3GPP Confidentiality and Integrity Algorithms &UEA1 UIA1".[dead link]
5. Mobile security Wikipedia, the free encyclopedia