A cyber-war between two virus authors saw numerous variants of the Netsky and Bagle worms dominate the top spots in the virus charts in March.
Antivirus firms were forced to update their products to cope with up to 15 different strains of each of the worms, and thousands of users were caught in the crossfire.
Steven Sundermeier, vice president of products and services at Central Command, which said Netsky was responsible for over 70 per cent of virus attacks last month, said: "It wasn't really a question of 'if' we'll see another release, it was more of a question of 'when'."
And Carole Theriault, security consultant at Sophos, agreed, adding that Netsky won the dubious accolade of the being the most prolific virus in March, accounting for almost 60 per cent of all virus reports to Sophos.
"As the argument between the two virus writers escalated, a torrent of new worms was released," said Theriault in a statement.
"To minimise the impact of such virus activity, businesses should consider blocking all attachments containing programs at the email gateway and setting up their antivirus protection to update automatically."
IBM and Technical University of Munich team demonstrate how Shor's algorithm, which can't be cracked by conventional computers, can be solved quickly with quantum computing
Hubble Space Telescope finds superflares from young red dwarfs could strip away planetary atmosphere
Younger stars are 100 to 1,000 times more energetic than when they're older
Two of the big four supermarkets will use the system to control sales of restricted products
PUBG news and updates: November's Update #23 to bring new Skorpion pistol and changes to blue zone visibility
Genuinely useful side-arm coming to PUBG in Update #23