Summary:
- The article discusses a security vulnerability found in the Postmark MCP (Mail Control Panel) npm package, which was being used to steal email data.
- The vulnerability allowed attackers to gain unauthorized access to the Postmark MCP package and insert a malicious backdoor that could be used to steal email data from users.
- The article explains how the vulnerability was discovered and the steps taken by the Postmark team to address the issue and secure the package.