You can just RTFA, it’s literally in the first three sentences:

Filing a proposed class-action suit in California, Katherine Wilson has accused Google of using Google Analytics and DoubleClick trackers on the California DMV site to unlawfully obtain information about her personal disability without her consent.

This, Wilson argued, violated the Driver’s Privacy Protection Act (DPPA), as well as the California Invasion of Privacy Act (CIPA), and impacted perhaps millions of drivers who had no way of knowing Google was collecting sensitive information shared only for DMV purposes.

You don’t think Google is tracking you when you’re filing your taxes online, do you?