Quote:
Originally Posted by Chroma
I mean the BT/PHORM equipment generates a random UID that it assigns to me.
The Carphone/PHORM equipment would do the same, and unless there was direct communication between the two ISP's equipment then neither cookiemongler would know which UID's where already in the system.
Doesnt this pose a significant problem for the actual database?
I mean a database frankly goes into meltdown when two unique keys are the same for two different tables (unless theres a secondary key to differentiate)
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The UID is 128 bits long, phorm could use a few of those bits to uniquely identify each specific device and use an incrementing count rather than being truely random. However with 2^128 permutations it is quite likely that they won't worry about it. The worse that could happen if you share a UID is that you will share the one profile, so the adverts won't be quite so relevant. If a website doesn't appreciate being exploited by phorm, it could change the UID in the tracking cookie for their own domain, potentially poluting someone elses profile with your browsing of their site anyway.