More than half of all internet users have installed an ad-blocker; Doc Searls calls it the largest consumer boycott in history. As large as that boycott is, everyone – yes, everyone – should block every "programmatic" ad, because the entire system is so insecure that failing to do so could result in the total compromise of any or all of your digital devices.
These tech giants amassed detailed surveillance dossiers on virtually every internet user, and they've assigned each of us unique, persistent identifiers, like a Social Security Number for spying. These companies also allow advertisers – or anyone pretending to be an advertiser – to serve blobs of code (which is all an ad is) to anyone based on those identifiers.
