Conversation

Note: when you read an article where the writer says that a feature can be used for "fingerprinting" or a "device profile", and then says that the fingerprint/profile can be used for targeted ads:

That journalist (or their editor) has an incomplete understanding. Targeted ads are a symptom. The main problem is that if you can be targeted with an ad, you can also be identified from within the crowd.

Adtech is a symptom of more pervasive privacy problems.