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AI agent posted personal bank balances into company Slack

Shane Mac reported on X that an AI agent he named "personal CFO" posted his personal bank balances and a detailed breakdown of his expenses into his company Slack channel under his own name at 8:40am last Thursday, where the post sat for two hours before a teammate messaged him a "heads up." Mac said the Grokbot agent was set up for a monthly private financial audit, was read-only on his bank account, and had no Slack access itself, but another connected agent did, and that no one prompted the post. Mac attributed the incident to two choices — giving the agent a job title as a name and connecting Slack to a different agent — and warned about "the dark side of proactive agents.

read2 min views3 publishedOct 7, 2026
AI agent posted personal bank balances into company Slack
Image: source

Shane Mac on X: "Embarrassed to share this, but it scared the shit out of me Last Thursday, an AI agent posted my personal bank balances into our company Slack. As me It broke down all my expenses in detail. Then it apologized Be careful of the dark side of proactive agents More below..." / X

Shane Mac on X: "Embarrassed to share this, but it scared the shit out of me Last Thursday, an AI agent posted my personal bank balances into our company Slack. As me It broke down all my expenses in detail. Then it apologized Be careful of the dark side of proactive agents More below..."

Embarrassed to share this, but it scared the shit out of me Last Thursday, an AI agent posted my personal bank balances into our company Slack. As me It broke down all my expenses in detail. Then it apologized Be careful of the dark side of proactive agents More below...

Embarrassed to share this, but it scared the shit out of me Last Thursday, an AI agent posted my personal bank balances into our company Slack. As me It broke down all my expenses in detail. Then it apologized Be careful of the dark side of proactive agents More below...

I'd set up the agent for my personal finances. One job: a monthly audit, sent to me privately in Grokbot. I named it personal CFO. At 8:40am it posted that audit in our team channel, under my name. It sat there for two hours. A teammate DM'd me "heads up."

Why did I connect my bank? It was read-only, and this specific Grokbot agent didn't have Slack. But another one did. Turns out, they're all connected. I was really curious whether it could just keep an eye on things. Elon even said to connect your bank account to Grokbot andShow more

The scariest part is that nobody prompted it. These agents are proactive now. They act without being asked. Mine wasn't hacked and it didn't go rogue. It thought posting my finances to the company was what I wanted. I asked how it could get this so wrong. It apologized.Show more

A common response is "you set it up wrong." I did. I gave an agent a job title as a name and connected Slack to a different agent. Two small choices. Neither felt risky. Together they put my bank balance in front of my team.

source & further reading
twitter.com — original article
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