Security researchers sometimes post scripts that demonstrate vulnerabilities in monitoring apps.
If you are looking for open-source alternatives for monitoring or parental control, there are many legitimate projects on GitHub. These tools require technical knowledge to set up but offer transparency. A. Parental Control/Device Management mspy github
While they have premium services, they often open-source components of their logging software. B. Self-Hosted Monitoring mspy github
An open-source, client-server application for device management and tracking. mspy github