DoubleVerify Neutralises ‘SmokeScreen,’ a New Global CTV Fraud Scheme Using Screensavers to Hijack Streaming Devices


DoubleVerify ('DV'), (NYSE: DV), a leading software platform for digital media measurement, data & analytics, has identified a new connected TV (CTV) advertising fraud scheme, dubbed “SmokeScreen,” which caused screensavers to hijack CTV devices to generate impressions— even when the screen is off. DV’s Fraud Lab, consisting of a dedicated team of data scientists, mathematicians & researchers focused on protecting clients and partners from all manner of fraudulent inventory, uncovered and neutralised SmokeScreen.

“As fraudsters continue to aggressively target the CTV space, we are committed to blocking emerging fraud schemes across all devices, formats and ad delivery platforms,” said Mark Zagorski, chief executive officer at DoubleVerify. “Safeguarding the brands we serve is our first priority, since it directly impacts ad effectiveness. Fraud harms inventory quality, which in turn drives suboptimal business outcomes for global advertisers. Through the incredible efforts of our Fraud Lab, DV is providing CTV advertisers with much-needed transparency and protection, while helping to preserve the monetisation opportunity for quality publishers”.

Once an end user installs the fraudsters’ malicious screensaver, SmokeScreen generates impressions en masse using falsified data and allowing the bad actor to continuously run impressions in the background. The user has no idea ads are being continuously served on the device, even when the CTV screen is off. On average, the typical hijacked device generates three times the impression volume of its legitimate counterpart.

While DV neutralised SmokeScreen for its clients and partners— helping them avoid wasted investment, the scheme remains active on unprotected CTV platforms and advertiser campaigns, impacting nearly 10,000 devices daily and generating up to 10 million fraudulent requests each day. At an average USD$20 (£14.49) CPM across CTV, each month SmokeScreen generates more than 300 million ad requests, valued at over USD$6m (£4.35m)— defrauding advertisers and publishers alike.

"CTV ad fraud doesn’t just impact advertisers,” said Roy Rosenfeld, head of DV’s Fraud Lab. “It’s harmful for the entire ecosystem— siphoning revenue from high-quality CTV publishers and app developers, as well as streaming platforms”.

DV’s Fraud Lab utilised data and insights from the company’s Video Filtering solution, a new DV innovation that lets advertisers reduce quality infractions and associated wasted investment across all video environments and devices, even where blocking is not supported— such as CTV. In this case, the DV Fraud Lab used DV Video Filtering to help create a SmokeScreen detector that protects DV clients from the attempted fraud.

For the full analysis of SmokeScreen, click here.


DoubleVerify is the leading independent provider of marketing measurement software, data and analytics that authenticates the quality and effectiveness of digital media for the world’s largest brands and media platforms. DV provides media transpare...
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