---
title: "Claude deleted a law professor's notes and Dropbox restored them; Dropbox paid $350 million for Tigris Data"
description: "William Baude's constitutional-law files came back through Dropbox's file history the same day Dropbox agreed to pay $350 million for Tigris Data and guided 2027 revenue roughly flat without the deal."
publisher: "The Inference"
section: "Platforms"
published: 2026-11-08T15:29:28.364Z
modified: 2026-11-08T15:29:28.364Z
canonical: https://theinference.org/article/claude-deleted-a-law-professor-s-notes-and-dropbox-restored-them-dropbox-paid-350-million-for-tigris-data
language: en
keywords: "Dropbox, Anthropic, AI Agents, Acquisitions, Storage"
---

# Claude deleted a law professor's notes and Dropbox restored them; Dropbox paid $350 million for Tigris Data

> William Baude's constitutional-law files came back through Dropbox's file history the same day Dropbox agreed to pay $350 million for Tigris Data and guided 2027 revenue roughly flat without the deal.

## Claude deleted the notes, then pointed to Dropbox for the undo

William Baude, the Harry Kalven Jr. Professor of Law at the University of Chicago, asked Claude, [Anthropic](https://theinference.org/markets/companies/anthropic)'s AI assistant, to update page numbers in old constitutional-law lecture notes, then went to lunch on November 5, 2026 [1][2][3]. The assistant's own message, [in the screenshot he posted](https://www.dexerto.com/entertainment/professor-returns-from-lunch-to-find-ai-deleted-years-worth-of-lecture-notes-3425652/), reads: "I deleted your Fall 2026 FINAL syllabus .docx and all top-level Class N 2023 notes by accident, and they are not restored." [1][2]

![William Baude, professor of law at the University of Chicago](https://storage.googleapis.com/theinference-public/img/477d7b500b778fd5.png)

*William Baude, whose November 5 post showed Claude deleting his constitutional-law lecture notes and Dropbox's file history restoring them. (ReasonTV)*

It then asked whether he could restore the deleted files from [Dropbox](https://theinference.org/markets/companies/dropbox) [1]. Everything came back: "I did recover them all, thanks to Dropbox," he wrote [2]. The post drew about 2.0 million views by November 7, against his 23,025 followers [1].

## The undo button sat outside the agent

An assistant asked to renumber pages had enough access to delete the originals, and the rescue ran through another company's product. [Anthropic's guidance for Cowork](https://fourweekmba.com/ai-claude-deleted-a-law-professors-notes-dropbox-had-copies/), its agent that works in folders a user connects, says permanent deletion requires explicit permission, and it advises a dedicated working folder and backups of important files [1]. The backup Anthropic recommends is, in practice, a paid storage product with version history. That is Dropbox's core business.

## The same day, Dropbox bet $350 million on agent storage

The same day Baude posted, Dropbox (Nasdaq: DBX) reported third-quarter results and announced [a definitive agreement, signed November 3](https://www.marketscreener.com/news/dropbox-announces-plans-to-acquire-tigris-data-inc-and-unveils-dbx-agent-cloud-as-part-of-ai-powere-ce785fdcd18bf023), to buy Tigris Data, an object-storage startup founded by former [Uber](https://theinference.org/markets/companies/uber) engineers, for roughly $350 million in cash, plus DBX Agent Cloud, a storage layer for AI applications and agents [4][5][6].

Co-CEO [Ashraf Alkarmi](https://theinference.org/markets/people/ashraf-alkarmi) framed the pitch: "The value of AI depends on the content and context it can work with" [5]. That is the bet this desk left unsized on November 6, stacked on the 9 percent workforce cut and CTO exit it covered on [November 1](https://theinference.org/article/dropbox-cuts-200-jobs-and-loses-its-cto-with-the-stock-trading-above-its-average-analyst-target) [5][7].

## Agent demand is arriving before the revenue does

The demand is visible already: about 1.4 million users connect Dropbox to outside AI tools such as ChatGPT and Claude, and more than 20 percent of teams used included AI credits last quarter [7]. The new AI experience has reached more than 70,000 teams [4][6], and management sells Tigris's snapshots and forking on lower latency and reliability for agents [7].

*Chart: **Three years of Dropbox revenue, flat near $630 million a quarter** Line chart of Dropbox quarterly revenue from Q4 2023 to Q3 2026, holding between about $625 million and $644 million and ending at $637.3 million.*

*Quarterly revenue, USD millions, from Dropbox's SEC filings. Q3 2026 reported November 5, 2026. [8]*

The urgency is the top line. [Quarterly revenue ended the September quarter at $637.3 million](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001467623), barely above the $635.0 million of Q4 2023 [8]. [Fiscal 2027 is guided roughly flat excluding Tigris](https://finance.yahoo.com/technology/ai/articles/dropbox-inc-q3-2026-earnings-133000627.html), with about 150 basis points of operating-margin expansion planned and a $13 million revenue headwind from FormSwift, a form-automation product shut down at the end of Q3 [7].

## Dropbox sells the insurance and shares the risk

The objection writes itself: Dropbox is joining the risk, not only insuring it. Its own AI now organizes, moves and edits files after user approval, with an action record and undo for supported changes [5][6]. Tigris's forking exists precisely so one agent cannot modify data other workloads depend on [9]. Agents were deleting files before this week: in April, [a Claude agent removed a company database in nine seconds](https://www.msn.com/en-us/money/general/rogue-ai-tasked-with-renumbering-pages-accidentally-deletes-law-professor-s-entire-syllabus/ar-AA2gTdKG) [3]. Anthropic has not commented on Baude's case, and no figure in the record prices what file history is worth [1].

## February will show whether agent storage is revenue or insurance

Management is holding 2027 guidance conservative until Tigris integration and AI monetization show up in the numbers, promised for February [7]. Baude's afternoon made the case for free: his notes came back because one copy sat where the agent could not touch it, and selling copies like that is what the $350 million buys [7].

## Takeaway

An AI agent's mistake showed where the undo button lives: outside the agent. Dropbox's $350 million bet on Tigris and DBX Agent Cloud turns that undo into a product, and February's update is the first test of whether it sells.

## Sources

1. [FourWeekMBA, "Claude Deleted a Law Professor's Notes; Dropbox Had Copies", 8 November 2026](https://fourweekmba.com/ai-claude-deleted-a-law-professors-notes-dropbox-had-copies/)
2. [Dexerto, "Professor returns from lunch to find AI deleted year's worth of lecture notes", 7 November 2026](https://www.dexerto.com/entertainment/professor-returns-from-lunch-to-find-ai-deleted-years-worth-of-lecture-notes-3425652/)
3. [Tom's Hardware (via MSN), "Rogue AI tasked with renumbering pages accidentally deletes law professor's entire syllabus", 6 November 2026](https://www.msn.com/en-us/money/general/rogue-ai-tasked-with-renumbering-pages-accidentally-deletes-law-professor-s-entire-syllabus/ar-AA2gTdKG)
4. [Unite.AI, "Dropbox Signs Tigris Deal to Enter AI Infrastructure", 8 November 2026](https://www.unite.ai/dropbox-signs-tigris-deal-to-enter-ai-infrastructure/)
5. [Dropbox press release via Business Wire (MarketScreener), "Dropbox Announces Plans to Acquire Tigris Data Inc. and Unveils DBX Agent Cloud", 5 November 2026](https://www.marketscreener.com/news/dropbox-announces-plans-to-acquire-tigris-data-inc-and-unveils-dbx-agent-cloud-as-part-of-ai-powere-ce785fdcd18bf023)
6. [The Next Web, "Dropbox to buy Tigris Data for $350M and launch DBX Agent Cloud", 5 November 2026](https://thenextweb.com/news/dropbox-tigris-data-350m-acquisition)
7. [Yahoo Finance (Moby), "Dropbox, Inc. Q3 2026 Earnings Call Summary", 6 November 2026](https://finance.yahoo.com/technology/ai/articles/dropbox-inc-q3-2026-earnings-133000627.html)
8. [Dropbox, quarterly revenue from its SEC filings, retrieved 8 November 2026](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0001467623)
9. [SiliconANGLE, "Dropbox acquires Tigris Data for $350M, releases new AI productivity features", 5 November 2026](https://siliconangle.com/2026/11/05/dropbox-acquires-tigris-data-for-350m-releases-new-ai-productivity-features/)


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Claude deleted a law professor's notes and Dropbox restored them; Dropbox paid $350 million for Tigris Data — The Inference. Canonical: https://theinference.org/article/claude-deleted-a-law-professor-s-notes-and-dropbox-restored-them-dropbox-paid-350-million-for-tigris-data