The forms of attack are diverse. Webservers are hacked into in order to spy on databases. Computers are infiltrated, whilst users are surfing the Internet, with the objective of gaining control over them. Manufacturing plant control software programmes are attacked in order to sabotage production. These examples demonstrate that protecting computer systems against viruses and trojans using security software only is no longer sufficient; and to make IT security work requires a comprehensive protection strategy. HDI Cyber Insurance provides companies with an integrated insurance solution.