ENISA has issued the annual ENISA Threat Landscape 2015 a document that synthesizes the emerging trends in cyber security. Malware remains the principal cyber-threat in 2015, they have increased in the number of instances detected and the level of sophistication. Web based attacks and web application attacks are in second and third place, no change has been observed respecting the previous report. The number of DDoS attacks continues to increase, the attacks increased with the volume and also their average duration has increased.”]
Source: https://securityaffairs.co/wordpress/43998/cyber-crime/enisa-threat-landscape-2015.html