Malicious MCP Server Discovered Stealing Sensitive Emails Using AI Agents

Malicious MCP Server Discovered Stealing Sensitive Emails Using AI Agents

Enterprises everywhere are embracing MCP servers—tools that grant AI assistants “god-mode” permissions to send emails, run database queries, and automate tedious tasks. But no one ever stopped to ask: Who built these tools? Today, the first real-world malicious MCP server—postmark-mcp—has emerged, quietly exfiltrating every email it processes. Since its initial release, postmark-mcp has been downloaded […]

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