Originally Posted by
tony draper
could there be any particular reason for this?
The child has chosen to download and install and run various items of malware - viruses, adware, and so on.
When my children used to do this I pulled the network cable immediately (don't want my ISP account banned for sending spam now, do I).
Then, when I had time, I fixed their machines, and allowed them to reconnect.
"When I had time" doubled on every incident (three days the first time, a week the second, a fortnight the third). They know that next time they do it it'll be a month ... and we've had no problems on our home network for years now
(At least, not any I've heard about, if they've managed to infect themselves again they've cleaned it up themselves, which is just as good really.)
Just a bit of bog standard child training, not rocket science.