Throughout the study it was hard to determine the exact number or percentage of different attack types, however the most common attacks are: denial of service, malicious codes, viruses, worms and trojans, malware, malicious insiders, stolen devices, phishing and social engineering, web-based attacks. Nevertheless, the results could easily be split into four categories, depending on the objective of the attack: cyber-crime, cyber espionage, cyber war and hacktivism.