SEOUL - North Korea has doubled the number of its elite cyber warriors over the past two years and established overseas bases for hacking attacks, a report said Sunday.
The North's cyber war unit now has 5,900 personnel, compared with 3,000 two years ago, the South's Yonhap news agency said.
"The communist country operates a hacking unit under its General Bureau of Reconnaissance, which is home to some 1,200 professional hackers," a military source was quoted as saying.
North Korean hackers have launched cyber attacks through overseas bases in countries such as China, the source said.
In recent years, hackers have used malware deployments and virus-carrying emails for cyber attacks on South Korean military institutions, commercial banks, government agencies, TV broadcasters and media websites