SEOUL: North Korea attempted to hack tens of thousands of South Korean smartphones this year, using malware disguised in mobile gaming apps, the South's spy agency said in a report submitted to parliament this week.
The National Intelligence Service said more than 20,000 smartphones may have been infected by the apps that were posted on South Korean websites between May and September, an aide to lawmaker Lee Cheol-Woo of the ruling Saenuri Party told AFP on Wednesday.
The NIS said it had worked with the websites' owners and the government to remove the applications and block relevant hacking channels.
The agency's report also said more than 75,000 hacking attempts were made against government agencies and their affiliates between 2010 and September this year -- with many of them believed to have originated in North Korea.
In recent years, hackers have deployed malware and virus-carrying emails for cyber-attacks on South Korean military institutions, commercial banks, government agencies, TV broadcasters and media websites.
Investigations into past large-scale cyber assaults have concluded that North Korea was the source.
The North is believed to run an elite cyber war unit of at least 3,000 personnel, but it has denied any involvement and accuses Seoul of fabricating the incidents to fan cross-border tensions.
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