grelmar - 9:27 pm on Dec 9, 2010 (gmt 0)
Oh, that's a risky business voluntarily joining that botnet.
Legally, yes, very risky. You're opening yourself up for both criminal prosecution and civil liability.
From the point of view of the security of your own system, notsomuch with the risky. LOIC is an open source testing utility that's merely being borrowed for use by the 4chan Anon crowd.
It's actually quite useful if you want to test the hardness of your own infrastructure. Realistically, it should be in the toolbox of every competent sysadmin.
Sadly, this is a case where mis-use will likely cause the package to be difficult to acquire in the future.