[SimonHickling]

And here is the extensive explanation from the BT Webwise FAQ
http://webwise.bt.com/webwise/help.h...14,15,16,17,18

Actuallly it's so extensive, it's worth quoting in full
"BT Webwise does not scan password-protected content so it is ignored."

Thanks for that - I'll raise the question in my next exchange.

Just had a thought - does anyone have details of the IP ranges for the affected ISPs (or the default dynamic names given) in order to warn their victims?