Spending on security products and services in the US is expected to grow 78 per cent between 2003 and 2007, according to market research.
A study conducted by Infonetics Research predicts that security spending will rocket from $4.5bn (£2.7bn) now to $8bn in 2007.
The fear of hacking is the leading factor that is pushing companies to up their spending.
Jeff Wilson, principal analyst at Infonetics Research and lead analyst of the study, said: "No one knows for sure what will come out of this intense period of security technology development, but most new products will integrate application intelligence and intrusion detection and prevention.
"Demand for these new security solutions is coming from businesses of all sizes and types."
More than one-third of the survey's respondents said they will purchase or are considering purchasing wireless local area network security products.
By 2005, two-thirds of respondents will have purchased integrated security appliances, while a third use managed security services, or plan to by July 2005.
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