nah no more security probs m8... its becomming better and better... still the occassional ping attack on the networks just not on accual ppl... because most all irc servers now require hostmasking which hides users hostmask + ip sooo them nasty dDoS jerks cant get ya
i have been ping attacked because of IRC though... it sucks
if you'd like to chat sometime ill give u a link to a nice small network ill chat with anybody i dont care (about FIRST; etc, etc.)