Poisoned web poses risk to security

COMPUTER criminals are coming up with ever stealthier ways to make money. Rather than attack PCs or email inboxes, their latest trick is to subvert the very infrastructure of the internet, the domain name system (DNS) that routes all net traffic.

In doing so, they redirect internet users to bogus websites, where visitors could have their passwords and credit details stolen, be forced to download malicious software, or be directed to links to pay-per-click adverts.