Auctions That Decide Which Web Ads You See Draw Scrutiny

Superfast electronic auctions, known as real-time bidding, determine which online ads you see. But the Wall Street Journal's Patience Haggin says the auctions have drawn the attention of regulators in Europe because of data privacy concerns.

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Tech News Briefing is your guide to what people in tech are talking about. Every weekday, we’ll bring you breaking tech news and scoops from the pros at the Wall Street Journal, insight into new innovations and policy debates, tips from our personal tech team, and exclusive interviews with movers and shakers in the industry. Hosted by Zoe Thomas