British parents grossly underestimate how much time their children spend on the net, suggests a report.
Written by security firm Symantec, it found that UK parents believe their children are online for 18.8 hours per week. The true figure is 43.5 hours.
The report found that British parents were among those with the worst grasp of how long their children are online.
The research also found that in many cases the net was providing a new way for families to communicate.
The Online Living report from Symantec found that 20% of the 6,427 adults questioned had caught their children looking at unsuitable net sites.
Of the British parents questioned, 81% said they were confident that they knew what they children were looking at online.
By contrast, 31% of the UK children in the survey said their parents did not know what they were doing online.