'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.
At the BBC.
[ Read more ]
Reading our newsletter every Monday will keep you up-to-date with security news.
Receive a daily digest of the latest security news.