Low Orbit Ion Cannon (LOIC) is an open source network stress testing and denial-of-service attack application. LOIC was initially developed by Praetox Technologies, but was later released into the public domain, and now is hosted on several open source platforms. It’s named after a fictitious weapon from the ‘Command & Conquer’ series of video games.
The software has inspired the creation of an independent JavaScript version, enabling a DoS from a web browser. LOIC performs a DoS attack (or when used by multiple individuals, a DDoS attack) on a target site by flooding the server with TCP packets or UDP packets with the intention of disrupting the service of a particular host. People have used LOIC to join voluntary botnets. LOIC attacks are easily identified in system logs, and the attack can be tracked down to the individual users IP address.
The Daily Omnivore 
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