Yahoo spies on people who never consented to Yahoo’s privacy policy. They say this right in their new privacy policy.
“Oath analyzes and stores all communications content, including email content from incoming and outgoing mail.”
This means Yahoo is reading and storing the email of people who have sent email to you, and who themselves are not users of Yahoo nor have they agreed to Yahoo’s Privacy Policy as a condition of service.
When ever you send email to someone using a Yahoo email address, Yahoo is reading and storing your email without your permission.
