Off topic: Hacker

[Rick Lim]

Hi there,

I know this is not the correct forum to ask this question, but I have to
start somewhere.......

I have a friend with a linux firewall box.
There appears to be a very simple minded hacker trying to do simple ssh
password attacks on this box.

I have been using whois and reporting this to each ISP he/she is coming from
but he/she just breaks into a different machine on an new ISP and tries
again.

Is there something more I can do to track this person down?
Thanks.