I may have missed this on here - but there's an interesting point been made on the BT forums:
http://www.beta.bt.com/bta/forums/th...essageID=19483
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				....and what about laptop users who connect from home via a Phormed ISP, thus acquiring the Webwise UID cookies, then connect from work via a non-Phormed ISP, thus bypassing the cookie stripper?
			
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 ---------- Post added at 09:22 ---------- Previous post was at 08:46 ----------
Opting out for websites
Following exchange of a number of emails with Emma Sanderson at bt.com I was invited to send her a list of the websites I wished to have excluded. I have just sent her the following reply:
Emma,
I have given your message some considerable thought.
   1. I wish my websites to be excluded from profiling by Phorm or any similar organisation used by any ISP - it is therefore pointless just providing BT with URLs as this will not achieve the desired result.
   2. The URLs of my websites will not be staying the same - I already have planned one sub-domain change. I am not prepared to have to notify any number of organisations every time a change is made.
   3. I am not a BT user. If you were to place my website on a list of opted out websites I would have no way of verifying that this had been done and that it was effective. Likewise I would have no way of verifying a similar opt out for any other ISP utilising a similar system. I would also need to periodically check that the opt out was still effective - I am not prepared to do this.
   4. I have placed a notice on the home page of my main website - it is your problem to determine how you will implement systems to observe the conditions of that notice. I will be placing similar notices on my other websites.
   5. I will be adding client side code to my website which will detect illegally added or modified cookies. As a minimum this will alert the end user that this has happened and that they have a problem - it will also suggest that their ISP is the most likely cause.
I will therefore not be providing you with a list of URLs to be excluded.
---------- Post added at 09:26 ---------- Previous post was at 09:22 ----------
Ha,
I wonder if the stress of the current situation prompted this?
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				Out of Office AutoReply: [Fwd: Re: Preventing interception of website traffic by Webwise] 
 
Please note that I am now on holiday until Tuesday 6th May. 
 
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 Still, I cc'd Ben V. - he can deal with it!