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The Interactive Advertising Bureau estimates malicious advertising ”malvertising” costs the U.S. digital marketing, advertising, and media industry $8.2 billion annually.
A few years ago malvertising was merely scamming the system: fake ads, fake traffic, fake analytics. Ad tech is a hacker's heaven, an unregulated labyrinth of circumlocution systems for bidding, placing and tracking ads.
"All the code is awful and you aren't allowed to change it anyway," says Salon developer Aram Zucker-Scharff. "Usually ad servers claim they run some sort of checks, but considering just how many malicious or badly formed ads get through, it is pretty apparent they don't do much."
The hacker's goal is to bill, aka bilk, advertisers for ads no human ever saw. Their fraud takes several forms: Ad stacking piles multiple ads on top of each other. Ad stuffing shrinks ads to invisible 1-pixel squares. Click farms send fraud users to real sites. Clickjacking sends real users to fraud sites....
An in-depth look at what's breaking the news business as cyber criminals embezzle billions annually from advertisers.