Laser Focus World is an industry bedrock—first published in 1965 and still going strong. We publish original articles about cutting-edge advances in lasers, optics, photonics, sensors, and quantum technologies, as well as test and measurement, and the shift currently underway to usher in the photonic integrated circuits, optical interconnects, and copackaged electronics and photonics to deliver the speed and efficiency essential for data centers of the future.

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Editorial Advisory Board

  • Professor Andrea M. Armani, University of Southern California
  • Ruti Ben-Shlomi, Ph.D., LightSolver
  • James Butler, Ph.D., Hamamatsu
  • Natalie Fardian-Melamed, Ph.D., Columbia University
  • Justin Sigley, Ph.D., AmeriCOM
  • Professor Birgit Stiller, Max Planck Institute for the Science of Light, and Leibniz University of Hannover
  • Professor Stephen Sweeney, University of Glasgow
  • Mohan Wang, Ph.D., University of Oxford
  • Professor Xuchen Wang, Harbin Engineering University
  • Professor Stefan Witte, Delft University of Technology

DoubleVerify Issues Industry Alert for Ads.txt Exploits

Growing attacks — including DV-identified AI slop scheme, Synthetic Echo — highlight how fraudsters manipulate and exploit ads.txt, as the number of cases now exceeds 100

DoubleVerify (“DV”) (NYSE: DV), a leading software platform for digital media measurement, data, and analytics, today issued guidance in its Transparency Center to help advertisers navigate a rise in schemes designed to exploit ads.txt — the industry standard that enables publishers and platforms to publicly declare authorized digital inventory sellers.

The DV Fraud Lab has identified more than 100 cases of ads.txt deception since the standard’s launch in May 2017, with a significant increase in recent years, as fraudsters manipulate the system to appear legitimate and divert ad spend away from trusted publishers.

“Bad actors are exploiting ads.txt and advertisers often have no idea it’s happening,” said Gilit Saporta, Head of the DV Fraud Lab. “It’s a growing risk that demands more scrutiny from buyers, sellers and vendors.”

The scale of this deception is evident in Synthetic Echo, a network of over 200 AI-generated, ad-supported websites recently uncovered by the DV Fraud Lab. Monetized through multiple SSPs and exchanges, Synthetic Echo churns out low-quality AI content and uses deceptive domain names — like espn24.co.uk, nbcsportz.com, and cbsnewz.com — to mislead programmatic platforms and buyers into mistaking them for legitimate publishers.

According to DV’s analysis — detailed in the public alert available on DV’s website — the deception extends to ads.txt files. The DV Fraud Lab found near-identical ads.txt files replicated across Synthetic Echo sites, exposing how fraudsters scale these schemes by cloning authorized seller lists.

After DV publicized information about Synthetic Echo in January, a Wired report prompted several of the news publishers whose brands were misused to say they plan to pursue legal action.

Click here to review DV’s full guidance and best practices regarding ads.txt.

About DoubleVerify

DoubleVerify (“DV”) (NYSE: DV) is the industry’s leading media effectiveness platform that leverages AI to drive superior outcomes for global brands. By powering media efficiency and performance, DV strengthens the online advertising ecosystem, preserving the fair value exchange between buyers and sellers of digital media.

Learn more at www.doubleverify.com.

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