SourceFire (FIRE) stock shot up 24% Wednesday after the security firm reported a strong quarter and outlook late Tuesday. SourceFire makes advanced network security software that runs on appliances — primarily for next-generation intrusion prevention. Interest in and prospects for its newly introduced next-gen firewall “led us to say on the call that we believe we could grow our business 20% or more for all of 2012,” SourceFire Chief Financial