When an advertiser adds one of their users to the advertiser's Customer Match list,what happens to the user data?

The selected answer is correct because when an advertiser adds a user to their Customer Match list,theuser's data is kept confidential and secure.Google ensures that any customer data uploaded for use in Customer Match is handled with strict privacy and security protocols.The data is not shared publicly or with other marketers,and it remains accessible only to the advertiser who uploaded it,allowing them to target ads to that specific user group while maintaining privacy compliance.