If nothing has happened to your site and the message you got was not though your site having a hacked web page or sufin then I don't think anything is going to happen.
Since your site is still fully working go on to your Cpanel
Log on to Cpannel
Scroll to Logs (its on the main page its a header 4 down from the top if you have not changed things arround)
Select Raw Access Logs
Download and look though
:drool:
Have fun O and change your passwords and stuff
I have went to the logs and there is nothing, im not sure really because im using windows not linux. the file is 34kbs. i think the ips have been erased.