Research from IT security firm Sophos reveals that Trojans and spyware are edging out viruses as chief threats to business.
"While email worms occupy the top spots, it's clear that Trojan horses represent by far the most prominent threat to IT security," says Carole Theriault, senior security consultant at Sophos.
Two years on, Netsky still tops the bad boys, accounting for about one in five of all viruses, despite the fact that fixes are readily available.
At least 28% of the threats in April allowed an unauthorised third party to gain access to computers remotely, suggesting that hackers are now more focused on financial or data theft than simply causing mayhem.
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