AdWords Remarketing is a Remarketing and Behavioral Targeting service provided by Google. It connects the activity of www.example.com with the Adwords advertising network and the Doubleclick Cookie. You can opt out of their cookie tracking here:
https://support.google.com/ads/answer/2662922?hl=en
Personal data collected: cookie and usage data. Place of processing: USA. Find the Google privacy policy here.