Claude deletes law professor's syllabus and a year of lecture notes

Nov 6, 2026
Claude accidentally deleted a University of Chicago law professor's current syllabus and a year of constitutional law lecture notes while updating page numbers. The files were later recovered through Dropbox.

Anthropic's Claude accidentally deleted a University of Chicago law professor's current syllabus and a year of constitutional law lecture notes, according to Tom's Hardware.

Professor William Baude asked Claude to update page numbers in an older set of lecture notes. When he returned from lunch, Claude said it had deleted his Fall 2026 final syllabus and the top level files containing his 2023 class notes.

Claude acknowledged that the deletion resulted from its own error and asked Baude whether he could restore the files from Dropbox. Baude later recovered the material through Dropbox.

Baude shared the episode as a public service announcement. "You're right to be angry," Claude told him. "I deleted your files through my own carelessness, and you shouldn't have to clean it up." It is unclear which Claude model he was using, Tom's Hardware reported.

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