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The 5:45

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Apple Blocks Identity Resolution On Safari Browser

Apple has limited identity resolution companies' ability to track users, affecting ad tech. This move is part of a larger effort to restrict online tracking.

Original reporting · adexchanger.com

Original: “Identity Resolution Goes The Way Of The Cookie”

Read “Identity Resolution Goes The Way Of The Cookie” at AdExchanger →
Identity Resolution Goes The Way Of The Cookie
Image: AdExchanger

How this was written. The 5:45 wrote this article with a language model from AdExchanger’s reporting (model: @cf/meta/llama-3.3-70b-instruct-fp8-fast); it describes that reporting rather than adding to it. The original, linked above, is the full story.

Key points from AdExchanger’s report

  • Apple has limited identity resolution companies' ability to track users on Safari, affecting ad tech.
  • The move is part of a larger effort to restrict online tracking and may force ad tech companies to rethink their approaches.
  • The rise of AI-generated content, or 'AI slop,' may present unique challenges for the ad tech industry.
  • The industry may need to develop new methods for identifying and addressing these issues, prioritizing user privacy and transparency.

Apple has taken a significant step to restrict online tracking by limiting identity resolution companies' ability to monitor users on its Safari web browser. According to AdExchanger, this development is not surprising to industry insiders. The move is the latest in an ongoing battle between Apple and advertising companies.

Apple's decision gives the company an upper hand in this cat-and-mouse game. Ad tech and cybersecurity researcher Zach Edwards notes that Apple has the ability to see and block most attempts to circumvent its restrictions. As a result, ad tech companies may need to focus on obtaining user consent and developing safer identity schemes.

There are some potential technical workarounds that could allow companies to avoid Apple's restrictions, but Edwards believes these may not be effective in the long run. Apple's ability to adapt and block new methods may render these workarounds useless. The company's efforts to limit online tracking may force ad tech companies to rethink their approaches.

A recent report by Decrypt Ads highlights another challenge facing the ad tech industry: AI-generated content. The report found over 2,100 websites featuring fake recipes and other AI-generated content, which are monetized with programmatic ads. This phenomenon, known as 'AI slop,' may present unique challenges for the industry.

The rise of AI slop is reminiscent of previous issues in the ad tech industry, such as made-for-advertising sites and ad fraud. However, the use of AI-generated content may require new solutions. Edwards warns that the growth of AI slop sites may outpace efforts to slow them down, making it a significant challenge for the industry.

The ad tech industry has faced similar challenges in the past, but the use of AI-generated content may require new approaches. As the industry continues to evolve, it may need to develop new methods for identifying and addressing these issues. Apple's efforts to limit online tracking may be a driving force behind these changes.

As the ad tech industry navigates these challenges, it may need to focus on developing more transparent and user-friendly approaches. This could involve obtaining user consent and providing more information about data collection and usage. By prioritizing user privacy and transparency, the industry may be able to build trust and develop more effective solutions.

Questions and answers

What is Apple's stance on online tracking?

Apple is taking steps to restrict online tracking, including limiting identity resolution companies' ability to monitor users on Safari.

What is AI slop?

AI slop refers to websites featuring fake, AI-generated content, which are monetized with programmatic ads.

How may Apple's efforts affect the ad tech industry?

Apple's efforts to limit online tracking may force ad tech companies to rethink their approaches and prioritize user privacy and transparency.

Read the full story at AdExchanger More from Friday, October 23, 2026’s edition