🌯 Did Publishers Waste Time Playing in the Privacy Sandbox?

AdMonsters Wrapper: The weekly ad tech news wrap up
If you are a privacy professional or someone with even an inkling of interest in compliance, the IAB's Public Policy and Legal Summit was a star-studded event. From FTC officials to privacy lawyers to compliance professionals working at some of the biggest brands in the world, the IAB rolls out the red carpet to educate attendees.

Christopher Mufarrige, Director at the FTC's Bureau of Consumer Protection, pulled back the curtain on how the FTC will deal with AI, privacy and digital advertising. He explained how the FTC’s civil investigative demands (CIDs) are getting more targeted but remain costly, as well as how regulators are focusing a sharper lens on what “unfairness” really means under Section 5 of the FTC Act. His message was clear: Definitions matter when it comes to enforcement.

With that in mind, Mufarrige criticized the previous administration’s broad-stroke definition of “surveillance advertising,” which evokes negative connotations about targeted advertising that have likewise been condemned by the IAB.

“Targeted advertising, like any practice, can be good or bad,” said Muffarrige. “It depends on the facts and circumstances. We should not be dogmatic, but instead use evidence-based approaches to understand what’s happening in the marketplace and develop regulatory approaches that make sense for consumers.”

FTC personnel like Muffarrige may be big stars in this crowd, but no one hogs the spotlight like the Big G. Google’s announcement that it would no longer take away third-party cookies, and that it’s backtracking on the new choice mechanism it announced for Chrome, sucked up all the oxygen in the room.

“We’ve made the decision to maintain our current approach to offering users third-party cookie choice in Chrome and will not be rolling out a new standalone prompt for third-party cookies,” Anthony Chavez, Google’s VP of Privacy Sandbox, wrote in the announcement on Tuesday. It quickly became the talk of the summit.
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April 24, 2025
Publishers Played in the Sandbox—Was It Worth It?
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Did Publishers Waste Time Playing in the Sandbox?
Now that Google hit pause on its grand plan to kill third-party cookies in Chrome, publishers can breathe a sigh of relief (for now).

Instead of tossing everyone into the deep end of Privacy Sandbox experiments, Google’s keeping the cookie jar open—so publishers can keep their ad targeting and revenue streams humming along without scrambling for new solutions.

There will be no new pop-ups or prompts for Chrome users, Chavez wrote in the announcement, just business as usual while Google rethinks its privacy road map. For publishers, it’s a stay of execution: Keep calm, carry on monetizing and watch this space for whatever Google cooks up next.

But was the time spent testing the Privacy Sandbox worth it? Paul Bannister, chief strategy officer at Raptive, believes so, stating that investing in post-cookie tech is good for publishers.

“I don’t think publishers wasted their time for a few reasons. First, while Chrome cookies are going away, most browser cookies are already gone, and regulation and legislation will keep pushing that number down,” said Bannister.

He added, “Plus, Google is still saying that they are investing in the Sandbox, so if the Google Ads team keeps investing, money will come through those pathways that savvy publishers will want access to. It’s disappointing that it took so long to reach this point, but I think most of the investments were worthwhile.”

Chrome’s Decision Shouldn’t Stall Progress, Says IAB Tech Lab CEO

Anthony Katsur, chief executive officer at IAB Tech Lab, told AdMonsters that he agreed with this sentiment in a conversation at the privacy summit.

“For over 25 years, publishers have relied on interoperability across the open web,” Katsur said. “That’s why I see Chrome’s decision as a positive step—not just for publishers but for the entire digital media ecosystem.”

Katsur added that his biggest cookie deprecation concern has been the potential impact on midsize and long-tail publishers.

Katsur took AdMonsters down memory lane, back to when Safari deprecated third-party cookies in 2020. The move caused Safari CPMs to drop by 40% to 50%, and demand within Safari browsers declined by 30% to 40%. It was a significant revenue hit, particularly for smaller, long-tail publishers.

Third-party cookies also power interoperability, enabling measurement, anti-fraud efforts and cross-browser visibility, Katsur said. Without them, the ecosystem loses critical functionality.

But that doesn’t mean more privacy-forward solutions should take a backseat to cookies. Besides, cookies are kaput on plenty of non-Chrome platforms, with Safari being just one example.

“My concern is that 35% of the web—browsers like Firefox and Brave—is already not properly addressable through third-party cookies,” Katsur said. “We need to keep investing in privacy-first alternatives like synthetic IDs, clean rooms, server-to-server connections and first-party matching.”

But Google’s latest cookie reversal could lead to complacency and stall innovation of cookieless solutions. “I worry the industry won’t keep up the momentum,” Katsur said.

Regulatory scrutiny into data privacy isn’t going away either. The regulators at the IAB summit are still laser-focused on the digital ecosystem. The current administration seems more business-friendly and perhaps more sympathetic to how digital advertising drives consumer activity, which in turn drives the economy. But we’re still waiting to see what direction regulators will take, especially with uncertainty swirling around policy priorities and budget decisions.

“The last administration painted targeted advertising with too broad a brush,” said Katsur, agreeing with Mufarrige’s comments. “Every industry has good and bad actors. We should absolutely penalize the bad ones, but reward the good.”

Did you like this newsletter? Is there a topic you want me to tackle next time? Feel free to hit me up with your feedback at abyrd@admonsters.com.
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