www,bt.com ??

What have they done? My Bitdefender is blocking the site.

Try it with a full stop instead of a comma.

Post deleted by StormcroW

That was my typing still blocked, www.bt.com It's blocked by anitphishing in Bitdefender

Works fine here using eset smart security, Probably a false positive

Strange - no problem here. (I don't know what your first reply was, but I expect you thought I was being a smart-ass. I wasn't,there was a chance you had copy and pasted the URL).

Have you tried a power off an on of the computer?

I run a load of security filters on my net traffic, and BT's site does break so they doing something that triggers a filter.

even just running noscript with default allow on top level sites, alongside adblock plus is enough to break BT's site.