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What Google is doing, is it right, I don't know if it is legal or not, like is it legal for youtube to continually giving recommendation inspite of you deleting all the history.

I'm not an expert in IT Security and i do some data protection acts, a data subject need to have the right to ask data holder to delete all information held about him.

Am i right, if I'm wrong, please do correct because i'm really confuse

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For me youtube forgets(or at least pretends to forget) everything when I delete my cookies. in particular youtube personalization doesn't persist beyond clearing my cookies. – CodesInChaos Dec 26 '12 at 16:39
i tried, it didn't work – Noor Dec 26 '12 at 17:24
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This is more philispohical/morality based rather than an IT Security/how to protect myself question. Is this on-topic? I don't use this aprticular StackExchange site very often, but this seems off-topic, or at least not constructive to me. – David Stratton Dec 26 '12 at 17:45
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That is a legal question, and I think it is not relevant to SEC:SE. For legal advice, consult a lawyer. Furthermore, the law is different in every jurisdiction; European data privacy laws are very different from US laws. And Google has highly paid lawyers who are experts in each of those jurisdictions. Those lawyers make sure that what Google does is legal. – Mark C. Wallace Dec 26 '12 at 17:55

closed as not constructive by Lucas Kauffman, AviD♦ Dec 26 '12 at 20:38

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1 Answer

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its not just cookie, they match IP addresses and find all related targets. however perhaps you don't remove flash cookies

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I'm pretty sure that google doesn't use IP addresses to combine recommendations from different cookies. – CodesInChaos Dec 26 '12 at 18:21
As the allocation of dynamic IP adresses is still very common in many countries/with many ISPs (this might change with IPv6), keeping histories for IP adresses would not be very effective. – us2012 Dec 26 '12 at 19:29

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