What Lilly sees, and what it does not
An alert note gets the public advisory, its exploit signals, and the affected packages, versions and environments. A note on a found secret gets the file, line and variable name, never the value or who committed it. No source code, project names or people's names are sent for either, and nothing Lilly writes closes an exposure or silences a P1.
Lilly can hold a P2 or P3 back from digests when it is confident the finding does not apply, 90% by default, and marks it for a person to confirm. Owners and admins set that threshold or turn Lilly off, and each change is recorded as evidence.
Code review does send diffs, with secrets redacted. It is on by default for internal projects and off for client projects. Turning it on for a client project needs the project owner to confirm the client contract allows it, and that confirmation is recorded.