https://workspace.google.com/learn-more/security/security-whitepaper/page-6.html https://workspace.google.com/learn-more/security/security-wh... I'd argue it's

https://workspace.google.com/learn-more/security/security-whitepaper/page-6.html https://workspace.google.com/learn-more/security/security-wh... I'd argue it's the least valuable data. They can't look at it, they have regulatory, legal and contractual commitments to protect it, they have paying customers that will be very angry if it's lost or unavailable, and yet they can't mine it or train models with it or monetize it.