We’re sorry, but the sad fact of the matter is that we don’t have any way of knowing who installed the program on your Mac. The following information should help you to narrow down your list of suspects:
1. The person had physical access to your computer. Elite Keylogger cannot be installed remotely (unless using a full-access remote desktop connection).
2. An administrator password is required to install Elite Keylogger. So the person either a) had their own administrative user account, b) was give the password by you, or c) they guessed and/or stole your password.
Please do not contact support with this question, as customer records are confidential and we cannot give out that information to third parties. Please see “How to Uninstall Elite Keylogger for Mac” if you need to uninstall the program.