The Node.js ecosystem, specifically yarn and npm package managers, are vulnerable to attacks using niche configurations and hidden characters in code snippets. Attackers can create malicious packages with seemingly innocent names but execute a binary from the `.rc` file, which is not downloaded when running `npm install`. This attack vector exploits the way package managers search for configuration files hierarchically, allowing attackers to hide malicious code in plain sight. Developers may miss red flags, such as unusual file permissions or hidden files, and need to be cautious of third-party code, run it inside a sandboxed environment, and monitor their systems for suspicious behavior. The attack highlights the importance of increasing awareness among developers about these vulnerability vectors to prevent exploitation and improve overall security.