One line of malicious npm code led to massive Postmark email heist

Theregister | 30-09-2025 09:45am |

MCP plus open source plus typosquatting ... what could possibly go wrong? A fake npm package posing as Postmark's MCP (Model Context Protocol) server silently stole potentially thousands of emails a day by adding a single line of code that secretly copied outgoing messages to an attacker-controlled address....

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