This FAQ covers the fundamentals of programmatic advertising and the trends shaping the market in 2026.

Reuters reporting suggests Meta has been unable to contain large-scale fraud in its China ad ecosystem. Despite launching a dedicated crackdown in early 2024 that cut violating ads from 19% to 9% of China revenue, enforcement was later relaxed, allowing misconduct to climb back to 16% by mid-2025. A multilayer reseller network, weak overseas deterrence in China, and partner whitelisting made violations difficult to trace. China advertisers still generated more than $18 billion for Meta in 2024, creating tension between revenue goals and quality controls. The case raises sharp questions about platform accountability and advertiser risk.

Mozilla SVP Suba Vasudevan argues that digital advertising’s next frontier isn’t automation—it’s accountability. In her view, trust is no longer a soft metric but a measurable driver of performance. As advertisers recoil from fraud, opacity, and unsafe inventory, Firefox Ads positions itself as the premium alternative: a clean, privacy-first space where engagement aligns with user consent. The data backs her up—CPMs are climbing, and brands are paying more for quality—but the shift remains uneven. Many still prize efficiency over ethics. For marketers, the new equation is clear: trust and performance are converging, and only one will sustain the other.

Meta’s internal documents show it knowingly earned up to 10% of its annual revenues in 2024—around $16 billion—from scam and banned product ads, per Reuters. Meta, which owns Facebook, Instagram, and WhatsApp, reportedly served 15 billion high-risk scam ads daily, often letting them run unless 95% fraud certainty was detected. Brands should audit ad placements to see if scam ads dilute their impact. Seek platforms guaranteeing ad integrity, and require clear enforcement and accountability from ad platforms.

The news: Despite the shift toward programmatic advertising, a study from the Association of National Advertisers (ANA) identified a lingering issue with the trend: The growth of wasted ad spending. The amount of wasted ad spend in programmatic advertising has risen 34% in two years, up to $26.8 billion from $20 billion in June 2023. Our take: The efficiency and growing relevance of programmatic comes with brand safety trade-offs, making transparency and stronger verification a prerequisite for sustained investment.

The news: Google announced an expanded use of AI to combat invalid ad traffic in a bid to help advertisers preserve budgets and maintain trust, per a recent blog post. Though Google has previously used AI to prevent invalid traffic (IVT), the company has updated its “industry-leading defenses powered by large language models,” with the goal of better analyzing ad placements, suspicious user interactions, and app and web content. Our take: By taking concrete steps to reduce IVT and address transparency concerns, Google may begin to rebuild trust with advertisers.

The news: Meta announced today updates to its Brand Rights Protection product to combat an influx of scam ads across its social platforms. Meta will now give brands using Brand Rights Protection the option to report scam ads at scale, regardless of whether the ads use the brand’s intellectual property. This feature includes ads that are suspected as scams or ads that are misleading and exploit a brand’s name without authorization. Our take: With social media’s vulnerability to ad fraud and proliferating concerns about brand safety causing some advertisers to reconsider spending, Meta’s update comes at a critical time.

Meta’s ‘epidemic of scams’ is only worsening: As platforms fail to combat ad fraud, advertisers must be proactive to protect investments.

DoubleVerify sues Adalytics for alleged defamatory statements: The case underscores rising tension between ad verification firms and watchdog groups.

Deploying 50+ LLMs, Google blocked 39.2 million advertiser accounts in 2024, making AI the main enforcer of ad safety at global scale.

With limited transparency on causes, these failures remind users that platform dominance doesn’t guarantee stability or uninterrupted access.

Nielsen is sunsetting its legacy panel-only measurement this year. What do advertisers need to know as they prepare to transact on big data-based metrics at scale?

Reddit expands its IAS partnership: New tools tackle fraud, improve viewability, and strengthen brand confidence on the UGC-heavy platform.

Mobile ad fraud is evolving: A new scheme exploited bid requests and fake installs, highlighting why marketers must invest in fraud detection to protect ad spend.

AppLovin faces fraud allegations from short sellers: Accusations of deceptive ad practices and data misuse put the firm under pressure; leadership denies the claims.

Lawmakers pressure Amazon into improving ad transparency: A bipartisan letter stemming from Adalytics highlighted quality issues with DSPs.

Generative AI is making the MFA problem worse: Some brands report as much as 40% of their ad spend going to MFA sites, per Adweek.

Made for advertising sites still claim 13% of programmatic ad spend: Despite major efforts from exchanges, the MFA problem still hasn’t been solved.

Retail media networks deliver 183% higher engagement, but with tradeoffs: Viewability and strategic ad placement are key, says new DoubleVerify report.

As connected TV gradually eclipses linear, the measurement space continues to evolve. The market’s in for another year of transitioning from a single dominant currency to multiple currencies.