Observed Signal · Nov 4, 2025 · Technical Release · Source: AdExchanger · Impact: 3/5 · Sentiment: Positive
New Tool Tackles CTV Device Spoofing Head-On
The IAB Tech Lab announced a new device attestation feature for its Open Measurement (OM) SDK to verify that ad impressions come from real devices rather than spoofed ones. The feature provides a deterministic signal from manufacturers through attestation tokens delivered using the Privacy Pass Protocol, aimed at reducing CTV fraud. OM SDK version 1.6 enables device attestation, with Apple and Fire TV devices currently supported. Manufacturers on board include Google, Apple, and Amazon, while participating ad tech companies include AdsWizz, Amazon Ads, DoubleVerify, Google, HUMAN, and IAS. The mechanism can support post-bid verification and potentially pre-bid use, though pre-bid viability is limited by API-call constraints. Industry experts emphasize that device attestation is a valuable signal but not a silver bullet for IVT, and widespread adoption by publishers and manufacturers will be required to realize its impact.
Significant potential impact on CTV fraud prevention and IVT signals, but not a platform-level release; adoption-dependent.
Track IAB Signals & Market Shifts in Real-Time
Polaris7 autonomous intelligence agents track regulatory filings, primary sources, executive changes, and deal flow 24/7. Create your free Explorer workspace to monitor these entities.
Key Takeaways & Evidence Grounding
- IAB Tech Lab announced a device attestation feature for its Open Measurement (OM) SDK.
- The feature uses attestation tokens from device manufacturers via the Privacy Pass Protocol to confirm real devices.
- OM SDK version 1.6 enables device attestation, currently supporting Apple and Fire TV devices; manufacturers on board include Google, Apple, and Amazon.
- Participating ad tech companies include AdsWizz, Amazon Ads, DoubleVerify, Google, HUMAN, and IAS.
- The signal can be used post-bid to verify devices and may inform pre-bid verification; it is not a complete IVT solution and requires broad adoption.
Connected Companies & Entities
8 Entities mappedRelated Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
IAB Tech Lab Tightens CTV Fraud with Device Attestation
IAB Tech Lab has unveiled Device Attestation as a new capability within its Open Measurement SDK to counter device spoofing in connected TV (CTV) ad fraud. The feature provides a secure signal of the device on which an impression is served, using a privacy-preserving approach based on the Privacy Pass Protocol from the IETF. Device Attestation sits inside the OM SDK and is launched with support on Apple devices and Fire TV, as the OM SDK has expanded into CTV since 2022. IAB Tech Lab CEO Anthony Katsur says the capability is a critical next step for CTV growth, stressing that the OM SDK relies on device-native signals rather than inferred data. HUMAN’s Geoff Stupay calls it a fundamental shift in fraud defense, while adoption by device manufacturers and buying platforms remains a key challenge. Ron Pinelli of the MRC notes device spoofing as a significant attack vector.
CleanTap Exposes Programmatic Flaws with Spoofed CTV Devices
A CleanTap study claims it successfully spoofed connected TV (CTV) devices to probe invalid traffic (IVT) in programmatic ad ecosystems. Using a Raspberry Pi with a dummy HDMI output and under $100 in hardware, CleanTap conducted a 10-day experiment in July, tracking thousands of bid requests from two IPs and asserting that 100% of the spoofed IVT was accepted into live auctions. The test led to ads being served to a spoofed CTV device from 54 brands. AdExchanger did not name platforms or publishers, noting the IVT was manufactured for the study. Third-party verification reportedly flagged impressions as invalid, yet ads were still delivered. The report underscores gaps in pre-bid and post-bid verification and highlights industry concerns about spoofed devices in the CTV supply chain, contributing to ongoing debate about IVT and detection capabilities.
AWNY, Jupiter Fest Spotlight Agentic Ads and Open Web
Advertising Week New York and the inaugural Jupiter Festival Miami highlighted the industry's shift toward agentic advertising and anxieties about the open web's future. Major announcements included TikTok's off-platform ad expansion and a new AI shopping agent, Meta's AI campaign assistant testing, and OpenAI's visual ads introduction. Paramount's $110 billion acquisition of Warner Bros. Discovery closed, forming Skydance. Key themes were the threat of AI to publisher traffic, the rise of AI visibility tools, the early stage of agentic media buying, unsolved cross-platform measurement, and the booming sports and retail media sectors. Deals included PubX's acquisition of Compliant and a $5 million Series A, and OpenAI's reported $30 billion round talks with BlackRock and UAE investors.
Track Real-Time Market Signals & Shifts
Set up custom watchlists to receive automated, evidence-grounded executive digests whenever material signals or shifts occur across your tracked landscape.