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Gmail users warned to opt out of new feature - what we know
(www.newsweek.com)
This is a most excellent place for technology news and articles.
So you think that they're not using your data simply because they're not telling you that they are? Don't be naive. Since when are these companies asking for permission? I'm not even confident opting out does anything. At this point, your safest bet is to not use their services.