The private sector near monopolies which operate within the UK government regulated telecommunications / internet service provider market are inherently not to be trusted to look after the Privacy and Anonymity requirements of their captive customers.
For example, when registering a Vodafone Sure Signal device, which plugs in to your domestic or business broadband internet connection and acts as a short range 3G mobile phone signal booster femtocell.
Despite the fact that purchasers of such devices are doing them a huge commercial favour, saving them lots of money in otherwise necessary improvements to their 3G mobile phone network infrastructure, Vodafone have a cheeky / creepy "help" pop up on their Clear Signal device registration page.
Not content with demanding your Post Code and street address (but not your actual house / office number within the street), you have to give the Clear Signal device a Name, which is presumably available to their network engineers and other snoopers.
Stuck for a name? Try using your surname and the year you were born.
Under the controversial Government proposals in the Communications Data Bill, if you were foolish enough to betray your Surname and Date of Birth in this way, which is not necessary for the proper functioning of the mobile phone network, then the information in this data field would undoubtedly be seized without a warrant as Communications Data and probably also fed into spamming / marketing databases as well, even though it is clearly "content" which should require an Interception Warrant. (not, unfortunately, actually one signed by an independent Judge)
It is likely that the Sure Signal Name will find its way into Call Detail Record (CDR) and other logfiles associated with each individual 3G mobile phone voice , SMS text or data call, which will be passed on to people or organisations who would not routinely have access to the Registration database or other Subscriber Data.
It is already a scandal that your financial bank and credit card details which you used to purchase a subscription, contract or phone handset with, are at risk of being snooped on or abused by people and organisations, who are only supposed to be doing simple "reverse telephone directory" lookups of who a particular phone or internet or email account is registered to.
Follow the latest Communications Data Capabilities Programme (CCDP) snooping news on Twitter via the #CCDP hashtag.