Sony Group Corporation

Purpose: sending the RankedRobot digest. Nothing else; never sold or shared for marketing.
What we keep: your email address, the date you signed up and the page you signed up on.
How long: until you unsubscribe, when the address is deleted. Before the first issue we email you once to confirm; addresses not confirmed within 30 days are deleted.
Who processes it: stored with Cloudflare, our host, which may process it outside your country. We'll name our email-sending provider in the privacy notice before the first issue.
Your choice: you don't have to subscribe; the only effect of saying no is that you won't get the digest. Unsubscribe any time.

Headquarters: Japan (as stated on an official page).