The web is increasingly being used as a platform for "launching malicious codes", according to one industry expert.

Kaspersky, which develops, produces and distributes information security solutions, has warned that internet users' computers can now become infected simply by visiting a website – a process known as the "drive-by download".

David Emm, senior technology consultant for Kaspersky, said: "For the last three or four years now we've been in an environment of what you would call cyber crime as opposed to cyber vandalism.

"People making malicious programs are looking to get some sort of pay-off at the end of it, and the more we go online, obviously that means rich pickings are out there."

He added that people can prevent their computers becoming infected by becoming more technically aware and recognising what "potential pitfalls" there may be.

Earlier this month, the BBC revealed that security firms are reporting an increase in the number of malicious programs found online, saying that it has reached an "unprecedented high".

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