Disruption from internet worms, viruses or spyware is costing companies almost $2 million in revenue per incident, according to a report released Tuesday by market-research firm Aberdeen.

Companies are increasingly using the internet for sales, customer service, procurement, sourcing, distribution, and fulfillment, the Boston-based firm said.

"Average revenue losses, not recovery costs, are driving firms to do something about business downtime from internet business disruptions," Jim Hurley, Aberdeen vice president of risk, security and compliance, said in a prepared statement. "Increasing usage of the internet for these core business functions means that business disruptions from internet security can seriously impact a company's revenue."

www.aberdeen.com