* Mobile devices key security worry for TMT firms-Deloitte
* Sales of smartphones outpaced PCs in 2011
* Flaw in GSM standard gives criminals access to any phone-researcher
By Tarmo Virki
BERLIN, Dec 30 (Reuters) - Mobile phones, long seen as safe amid rising threats to computer security, have become a key target for hackers and an increasing worry for corporate IT departments.
While the first mobile virus dates back to June 2004, risks from hackers remained limited because of the relatively small size of the market.
But this has changed recently with the surge in the smartphone segment, which this year outgrew the PC market, and the new dominance of Google's Android software.
The emergence of mobile payments, which allows shoppers simply to swipe their phones at a cash register, is whetting the interest of hackers and data thieves.
"Mobile security has become a major concern since smartphone transactions are now of much higher value, including corporate data access, managing personal finances and online purchases," said Steven Nathasingh, chief of U.S. research firm Vaxa Inc
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