Industry Impact3 min read

A Dead Company's Slack History Is Now Worth Real Money

By , Senior AI ConsultantPublished

Companies that shut down are selling their chats, documents and code to AI labs, and the employees who wrote those messages usually get nothing and have no say.

Startups that fail can now sell their code, and the history of their Slack, Notion, Google files and email, to AI companies. A new kind of shutdown service finds the buyers and handles the paperwork. The news is small, but the idea behind it is bigger: the ordinary record of how a company worked has become something you can sell, and it is worth most when the people in it argued, hesitated and made hard calls.

Disagreements and judgment calls are what buyers want

AI labs use these archives to build practice worlds, sometimes called reinforcement-learning gyms. An AI agent is given a task inside a copy of a working office, such as untangling a company's IT systems or drafting a legal brief, and it learns from how that goes. Invented offices have flaws that give them away, like dates that do not exist. A real company's history does not.

That changes what counts as valuable. One company's Slack, if it holds a wide range of conversations with real depth, can be worth more than another company's Slack, email and calendars put together. The tidy documents matter less than the argument about a client's scope, the price that was cut and then restored, and the thread where someone said no.

Nobody has shown yet how much real data improves a model compared with invented data, so prices vary a great deal from buyer to buyer.

What a message sells for

The biggest sale so far shows the scale. Google paid $10 million at a bankruptcy auction for Spirit Airlines' emails, chats and documents: about 100 million emails and 500 million Teams chats. That is under two cents for each message. We covered that sale when it happened, and we have argued that company know-how is what AI is short of. The startup sales show the same thing at a much smaller size.

Consider a 15-person design agency that is closing. It has three years of client disputes, pricing arguments and project handovers in Slack. A broker would value it by head count, years in business and how much was written. The founder might end up with something like the crypto founder in the news, about $40,000 for code and chat data together. The founder cannot see who the buyer is or what they will do with it, and cannot easily tell whether the offer is fair.

The people who wrote the messages are not in the deal

Enron's archive had the same problem, and it was handled in public. After employees complained, about 100 of them were given batches of files to search for terms like Social Security numbers and divorce, and the archive went offline while they did it.

The private sales have no such step. Sellers say they hire data scientists to remove personal information and leave out HR records, and buyers say they remove it too. But work chat and calendars hold doctor appointments, school pickups and plans for the evening, and those are hard to find automatically. At Spirit, the flight attendants' union objected on privacy grounds.

A law professor who studies worker data argues that employees should have to give consent before their messages are sold. In the United States there is no federal law that bans such a sale, and the money goes to the company's creditors and investors, not to the workers.

What changes for people at work

For anyone who runs a small business, the workspace archive now belongs on the list of things the company owns, next to its equipment and its customer list. If you are winding down, ask a broker how the data will be cleaned and who the buyers are before you sign. If you are staying open, decide what you would do and tell your staff first.

For everyone else, the practical step is simple. Treat work chat as something that may outlive your employer and be read by a machine, and keep the doctor, the school run and the family plans on your own phone. Over the next few years, I expect employment contracts and workspace tools to start saying what happens to chat history when a company closes, because buyers will want the sale to be clean and staff will start to ask.

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