The F-Secure Threat Report's Incidents Calendar breaks down the major security events of the year--segregated into categories: Hacks & Espionage, Security & Enforcement, and Malware & Vulnerabilities.
According to F-Secure, Web-based malware attacks doubled in the second half of 2013 compared with the first half. The report also notes that Java-related exploits declined during the second half of 2013, but still make up the second-most reported type of threat. The F-Secure report also notes that 97 percent of the mobile malware threats in 2013 were targeted at Android--data that mirrors the information from the recent Fortinet Threat Landscape report .
For complete details, check out the full F-Secure H2 2013 Threat Report.