Apologies 

I apologise for this vandalism. The reason for this is that the first two or three clusters of the above IP address is a school, ranging from 11 to 18 year olds. So, you can expect vandalism from 82.198.250 and/or 82.198. I'm not entirely sure about IP addresses and what one denotes the entire school however.

Is there a way to tell the entire community about this problem? We're only talking about a single computer here; is there a way to talk about the first three clusters here?

Again, apologies on behalf of St. Edward's School in Essex, UK.