"Personal Account Balances Posted in a Company Slack Channel": A Grok Bot User's Claim
XMTP Labs CEO Shane Mac says his personal account balances and spending history were posted in his company's executive channel. Mac also relayed an explanation that the bot confused two similarly named channels and has since been fixed.
An AI assistant tasked with personal financial reporting posted banking details into a company Slack channel, according to a new account from a user. Shane Mac, CEO of XMTP Labs, says Grok Bot sent his account balances and spending history to his company’s executives. Business Insider interviewed Mac.
By Mac’s account, he built a bot for personal financial reporting in late August 2026. He gave it access to read information from his checking and savings accounts and set it up to send him a report every month. But when the report arrived on October 1, it landed not in “My Personal Exec Team,” the group chat where his AI agents live, but in his company’s executive Slack channel, Mac claims.
Why did the report end up in a company channel?
Mac says the Grok team investigated and found that the bot had confused a similarly named group chat with the company channel. He added that while there were several agents, internally they were all using the same service connections. One of those agents, Mac says, had his Slack account linked to it. The way he describes it, information pulled from his accounts was handed off to a different recipient at the point where the report was sent.
Mac also says the bot has since been modified so that it must first get the user’s permission before moving information to a different channel. After the incident, Mac says he disconnected everything, including his bank, Google, and calendar links.
The account access Mac granted the bot was read-only. His objection is that balances and spending history were posted in a company channel. Mac says he had instructed the bot to send the report only to him.
What does Grok Bot actually do?
Grok Bot is an AI product (an agent) that handles tasks on its own. It runs on a computer that stays on continuously in the cloud and uses websites and connected tools. Rather than simply returning answers in a chat window, the approach hands the bot work that involves using the services you connect. Mac says he used this capability for monthly financial reporting.
The official documentation explains how to use it with a paid Cursor individual plan or Teams plan, or with a linked personal SuperGrok subscription. The Grok Bot desktop app also includes a Korean-language interface.
What is at stake in this claim is how much information an AI can see, and whom it can send that information to. In a task set up to read personal financial information and report on it regularly, the choice of recipient became the problem. What remains is to cross-check the actual Slack post, the execution logs, and the settings in place at the time to confirm the delivery path, and to verify how far the fix Mac describes has actually been applied.