Delta Drive, Delta Trust & My Drive · Security, sign-in and privacy
How do I disable two-step sign-in for Delta Drive?
Short answer: In Delta Drive's Security screen on the web, enter a current authenticator or recovery code and choose Turn off. The code is required so someone with only your inbox can't remove the protection.
Open Security in Delta Drive on the web, type a current code from your authenticator app (or a recovery code), and choose Turn off. You'll be asked to confirm.
It asks for a working code on purpose: otherwise anyone who got as far as your inbox could simply switch the protection off. After it's off, your drive is reachable with an email code alone — so anyone who reaches your inbox reaches your files.
See turning it on.