Oracle’s BlueKai tracks you across the web. That data spilled online

Billions of records exposed.

Have you ever wondered why online ads appear for things that you were just thinking about?

There’s no big conspiracy. Ad tech can be creepily accurate.

Tech giant Oracle is one of a few companies in Silicon Valley that has near-perfected the art of tracking people across the internet. The company has spent a decade and billions of dollars buying startups to build its very own panopticon of users’ web browsing data.

One of those startups, BlueKai, which Oracle bought for a little over $400 million in 2014, is barely known outside marketing circles, but it amassed one of the largest banks of web tracking data outside of the federal government.

BlueKai uses website cookies and other tracking tech to follow you around the web. By knowing which websites you visit and which emails you open, marketers can use this vast amount of tracking data to infer as much about you as possible — your income, education, political views, and interests to name a few — in order to target you with ads that should match your apparent tastes. If you click, the advertisers make money.

But for a time, that web tracking data was spilling out onto the open internet because a server was left unsecured and without a password, exposing billions of records for anyone to find.

Continue reading at techcrunch.com

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