Surge in hijacked PC networks
The number of computers hijacked by malicious hackers to send out spam and viruses has grown almost 30% in the last year, according to a survey. More than six million computers world wide are now part of a "bot network", reported security firm Symantec.
Computer users typically do not know that their PC has been hijacked. More than a third of all computer attacks in the second half of 2006 originated from PCs in the United States, the threat report said. BBC NEWS | Technology | 'Surge' in hijacked PC networks
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