More than four-fifths of 5-year-olds in the territory now have access to an internet-ready device and around a quarter of that figure surf the web unsupervised, according to a survey of 2,000 parents of children aged 5 to 15.
The news comes as the UK government considers imposing measures forcing internet service providers to introduce content filters that subscribers must request to be reactivated.
"Children are increasingly technology savvy, yet their perceptions of danger are not fully developed," said Raj Samani, McAfee's European chief technology officer.
"It's crucial for parents to educate their children about how to stay safe online and also make sure that they have the appropriate blocks and controls installed on any device that might be used by a child."
TalkTalk has already introduced an adult content filter to its broadband service, forcing users to manually confirm that they wish to access x-rated content.