Home Data-Driven Thinking PII May No Longer Be The Third Rail Of Ad Tech

PII May No Longer Be The Third Rail Of Ad Tech

SHARE:

Data-Driven Thinking” is written by members of the media community and contains fresh ideas on the digital revolution in media.

Today’s column is written by Gary Kibel, a partner in the digital media, technology and privacy practice group at Davis & Gilbert.

In the past, if you mentioned personally identifiable information (PII) to someone in the ad tech ecosystem, they might cringe and emphatically state that they do not collect or process PII.

The common belief was that if PII were included within the service, it would require the service provider and the customer to take significant extra steps to ensure that all privacy, self-regulatory and other legal obligations were met.  These might include opt-in consents, increased data security measures, additional consumer disclosures and limitations on the ultimate use of the data.

While that is true, times are changing for many reasons, including disagreement over what is considered PII, new products and services and that four-letter word: General Data Protection Regulation (GDPR).

Defining PII

In the EU, there is one definition under applicable law for “personal data,” the European term for PII: any information relating to an identified or identifiable natural person. This definition includes common ad tech tools, such as tracking cookies.

In the US, ask three people to define PII and you may get three different answers. To those in the ad tech industry, tracking cookies are certainly not PII. However, the Federal Trade Commission has stated “we regard data as ‘personally identifiable,’ and thus warranting privacy protections, when it can be reasonably linked to a particular person, computer or device. In many cases, persistent identifiers, such as device identifiers, MAC addresses, static IP addresses or cookies, meet this test.” Yikes!

This uncertainty has led to confusion and uneasiness in the ad tech world.

Products and services

Providers are offering new ways for brands to exploit their first-party data, including through lookalike modeling and segment building. While it used to be challenging to get brands to part with their first-party data, that hesitancy has begun to wane.

GDPR 

If everyone is scrambling to put in place policies and procedures to comply with GDPR anyway, and EU law defines personal data as virtually everything under the sun, then ad tech companies may by default have no choice but to prepare themselves to handle more PII.

Therefore, the silver lining of GDPR may be less hesitancy on the part of ad tech companies to use PII in the US, leading to opportunities to exploit valuable data.

Not to be discounted, using PII in the US will still come with certain challenges and compliance obligations, but it may be time for ad tech companies to turn their GDPR compliance burdens into an opportunity.

Follow Gary Kibel (@GaryKibel), Davis & Gilbert LLP (@dglaw) and AdExchanger (@adexchanger) on Twitter.

Must Read

Upfronts Day One: Publishers Jostle For Position As Performance Drivers

And that’s a wrap on Day One of upfronts 2026! AdExchanger Senior Editors Alyssa Boyle and Victoria McNally traversed the island of Manhattan on Monday to scope out upfront presentations by NBCUniversal, Fox and Amazon.

Viant Sees A Growth Wave Coming, But First Marketers Must Really Ditch Walled Garden Ad Tech

Viant’s modest growth story took a backseat to a far louder claim: that fed-up advertisers are finally ready to ditch the rigged economics of Big Tech’s walled gardens.

Amazon’s Interactive CTV Ad Suite Now Includes Creative Optimization

Amazon Ads expects this year’s television upfronts to be an outcomes-focused affair. That may explain why the company preempted its Monday evening presentation by announcing the launch of a new ad product called Dynamic TV Creative.

Privacy! Commerce! Connected TV! Read all about it. Subscribe to AdExchanger Newsletters

Is Agentic Commerce An Oasis Or Mirage?

For companies like Shopify, Criteo and Instacart – and even for giants like Amazon and Walmart – figuring out if the agentic oasis is real or a mirage is their priority No. 1.

PubMatic’s Agentic AI Is Going Beyond Direct Deals

PubMatic has run more than 30 fully autonomous, end-to-end agentic campaigns through the SSP’s AgenticOS platform, in addition to more than 1,000 direct publisher deals.

The Trade Desk Has A Grand Vision, But Needs A New Breed Of CMO To Make It A Reality

TTD CEO Jeff Green laid out the DSP’s plan for winning in a new world of advertising that – AI aside – necessitates major changes in how marketers behave.