GOautodial Open Source Omni-channel Contact Center Suite

Hi everyone, I am new in this VOIP world, and I have been hacked and try to improve the security of my server. One thing I can not understand what is it for is the manager.conf file, I have these parameters in the files:

[general]
enabled = yes
port = 5038
bindaddr = 192.168.*.*

[cron]
secret = 1234
read = system,call,log,verbose,command,agent,user
write = system,call,log,verbose,command,agent,user

[updatecron]
secret = 1234
read = command
write = command

[listencron]
secret = 1234
read = system,call,log,verbose,command,agent,user
write = command

[sendcron]
secret = 1234
read = command
write = system,call,log,verbose,command,agent,user

Can anyone tell me how this file works and if I can change the values in here so my server could be more secure...

Thanx very much!

Alfredo