The Trojan horse defense is a technologically based take on the classic SODDI defense, believed to have surfaced in the UK in 2003.[1] The defense typically involves defendant denial of responsibility for (i) the presence of cyber contraband on the defendant's computer system; or (ii) commission of a cybercrime via the defendant's computer, on the basis that a malware (such as a Trojan horse, virus, worm, Internet bot or other program)[2] or on some other perpetrator using such malware, was responsible for the commission of the offence in question.[3]