Hi Ever since I got a Macbook, I noticed that someone keeps changing my Mac settings via a root account. Even I have set the Firmware Password, he still can get in to my Mac. When someone physically access to mac. He used a root account and set all settings. 1. Enable Active Directory and Bind via a root account. 2. Enable File Sharing via root account. 3. Enable Screen Sharing via root account. 4. Enable Parental Control via root account. 5. Enable Remote Desktop via root account. 6. Enable Internet Sharing via root account. 7. Airport was somehow enable via root account. 8. SSH and Kerberos have been set. 9. Keep Noticing that someone is syncing to his iPhone/ iPad. 10. Once he access to the root account, he changed my password. 11. There are times that Bluetooth was enable, and DNS settings was set. 12. Most of the System Preferences plist files have been altered without my knowledge. He inserted a SSH and Kerberos to the plist files. Every month I keep formatting my hard disk(All Zero out) and reinstall the OS. And the problem keep coming back. Even though I have used up a lot of my system hardening someone still keep changing settings and gain root access to my mac. When he starts to do all these things, I did not have a functional computer. I cannot seems to get anything to work on. He would spy on my computer and my internet activities. Even if I am not using a Mac. And used a PC. I still got the same problem. He remotely control my PC (whether in Windows or Linux) and my Mac to do all these things! He also read my emails! And changed my email password. Everytime when I wanted to used my computer, I saw a mouse cursor moving around my Desktop Screen. This person I believe keep remotely control my MAC via ARD. I really need some form of help.