Antiphishing question

I had to uninstall and reinstall my NIS 2009 16.5.0.135 and everything seems ok except I have some entries under security history in the identity log that read as follows:

 

info Using Antiphishing definitions 20090408.001 detected

info Antiphishing definitions version 20090408.001 downloaded detected

info Antiphishing definitions version 20090408.001 downloaded detected

info Antiphshing definitions version 20090115.003 downloaded detected

 

My questions are,  are these normal entries under the security history identity log?

and what does the first line mean "using antiphishing definitions 20090408.001?

does this entry mean that definitions are just loaded into my NIS 2009, or did they stop an antiphishing attack?

 

The reason I am asking this is because I have never seen any entries in the security history identity log before. And I have had NIS 2009 16.5.0.135 downloaded onto my computer at least 2 weeks. and the older versions of NIS 2009 since last October.

Message Edited by TooStrong on 04-07-2009 10:19 PM
Message Edited by TooStrong on 04-07-2009 10:20 PM