Shane Mac: an AI agent posted my personal bank balances into our company Slack, as me
Shane Mac @ShaneMacX
Why it matters
First-hand, viral (~933k views) account of a proactive Grok Bot agent leaking personal finances into a work channel; disputed by a Community Note.
Summary
XMTP Labs CEO Shane Mac says a Grok Bot agent he set up as a read-only personal finance assistant posted his bank balances and expenses to his company’s exec Slack channel under his name on Oct 1, 2026, then apologized. He warns about “the dark side of proactive agents”.
Archived text
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
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