“Yahoo is now part of Oath, the media and tech company behind today’s top news, sports and entertainment sites and apps.”

..and behind overt violations of your privacy

This includes: analyzing content and information when you use our services (including emails, instant messages, posts, photos, attachments, and other communications), linking your activity on other sites and apps with information we have about you, and providing anonymized and/or aggregated reports to other parties regarding user trends. …sharing Data with Verizon. Oath and its affiliates may share the information we receive with Verizon.

Verizon – another bad actor when it comes to privacy and acting like a monopoly

And of course, like Facebook, they buy other data sources, combine it and build a profile on you

Information from Others. We collect information about you when we receive it from other users, third-parties, and affiliates, such as:

When you connect your account to third-party services or sign in using a third-party partner (like Facebook or Twitter).
From publicly-available sources.
From advertisers about your experiences or interactions with their offerings.
When we obtain information from third-parties or other companies, such as those that use our Services. This may include your activity on other sites and apps as well as information those third-parties provide to you or us.
We may also receive information from Verizon and will honor the choices Verizon customers have made about the uses of this information when we receive and use this data.

The details — full privacy policy here

Just say no to Yahoo and OATH which includes AOL