Antisec derives from anitmatter which is a part of the everyday world. Every elementary particle has a corresponding anti-particle, which is antimatter. Protons have anti-protons. Neutrons have anti-neutrons. Electrons have anti-electrons, which are common enough to have their own name: positrons. Particles of antimatter have a charge opposite that of their usual components. For example, positrons have a +1 charge, while electrons have a -1 electric charge. Just like this every system has some security flaws that we can exploit.