NetQin Reveals Mainland China's Top Mobile Security Threats and Virus Prevention Tips

2010 emerges as the mobile security industry's most treacherous year yet

BEIJING, January 21, 2011 - NetQin Mobile Inc. ("NetQin"), a global leader in mobile security
services, today released findings on the top mobile security threats that
plagued Mainland China mobile device users in 2010. In its analysis of
attacks and mobile security threats from the past year, NetQin found 2010 to
be the most treacherous year on record, with almost triple the number of
viruses specifically targeting mobile devices compared to the previous year.

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NetQin indicated that, as of November 2010, the company had
identified over 2,000 mobile viruses and approximately 1,500 new viruses for
the year 2010, representing a 193 percent increase compared to the same
period the year before - or almost triple the number of threats from 2009.
Research by NetQin also indicated that the total number of mobile viruses
captured in 2010 is expected to exceed 2,500 and a total of more than 800
million mobile phones are estimated to have been infected by viruses in 2010.

The most widespread virus identified by NetQin in 2010 was called
the "Zombie Virus", infecting more than approximately 150 million mobile
phones. Zombie Virus variants also infected approximately 400,000 mobile
phones in 2010. NetQin's Cloud-Security Data Center also indicated four
additional key findings from its analysis:

    1. Virus type: The main security threats to mobile phone users in 2010
       were "fee consumption" viruses, malware that withdraws monetary credit
       on a phone once the virus has been contracted and enabled. This kind
       of virus increased in 2010 by a factor of more than five, growing from
       171 in 2009 to 968 in 2010. This type of virus represented 32 percent
       of mobile viruses, inflecting more than 250 million mobile phones in
       2010.
    2. Type of devices: Smartphones are expected to become a growing target
       in 2011, as hackers increasingly view smartphones as well as tablet
       PCs as a new attack platform. The increasing number of applications
       that can be downloaded on mobile devices is a contributing factor to
       this trend.
    3. Mobile platforms: Symbian was the most-targeted mobile platform, with
       64 percent of all viruses targeting the platform. Android users were
       affected by approximately 7 percent of the virus attacks and the
       Android platform is expected to suffer from an increased number of
       attacks in 2011.
    4. Inflection methods: an estimated 75 percent of mobile device users
       were infected by visiting the Internet or via WAP-enabled mobile
       phones.

NetQin's recommends the following tips to help end-users of mobile
devices to avoid virus infections:

    1. Avoid opening SMS, MMS, pictures and hyperlinks from unknown
       sources, even if the name contains words like "security".
    2. Keep the SIM card of your device when you have your smartphone
       repaired.
    3. Close the Bluetooth function of your device when it is not being used.
    4. Check your phone bill on a regular basis and in detail to spot
       any strange occurrences.
    5. Use mobile security software, such as NetQin's solutions, to
       protect your device.

About NetQin

Founded in 2005, backed by Sequoia, Mayfield, Fidelity and Ceyuan
VC, NetQin Mobile Inc. (referred to as "NetQin" hereafter) is a global leader
in mobile security services, delivers proven mobile security solutions based
on a cloud-computing model, including anti-virus, anti-malware, anti-spam,
privacy protection, data backup and recovery, as well as data management - to
more than 60 million users in more than 200 countries and regions worldwide -
to protect them against mobile security threats. As the market leader in
mobile security, NetQin holds 64.8% market share of China mobile security
market (2010 H1 Whitepaper on China Mobile Security Market by Frost &
Sullivan, August 2010), and has received multiple industry awards and honors,
including Technology Pioneer 2011 by the World Economic Forum, and the 2009
China Frost & Sullivan Award for Mobile Security Market Leadership.

For more information, please visit www.netqin.com/en.

Annie Diao of NetQin Mobile Inc., +86-10-8565-5555, annie.diao at netqin.com