William Baude, a University of Chicago law professor, said Claude deleted a year of Constitutional Law lecture notes and his current syllabus while he was at lunch. In the same X thread, posted November 5, 2026, Baude said he recovered every file through Dropbox.

Baude said the outcome was complete: he recovered all the files through Dropbox.

The reported task was to update page numbers

Tom’s Hardware reported that Baude had asked Claude to update page numbers in an older set of lecture notes.