the monitoring server can be hacked if the protection is vulnerable. Hackers are always on the lookout for server vulnerabilities. It is your responsibility to ensure your data is safe and secure. You can secure your server by using the following methods-
1- Always use a secure connection (using the SSH (secure shell) protocol is the best way to establish a protected connection.)
2- Instead of a password, authenticate an SSH server using a pair of SSH keys.
3- Use FTPs (file transfer protocol system) while transferring your files.
4- VPN also helps to keep the connection secure.