Surprize! According to the latest Internet Security Threat Report release on March 19, 2007 by Symantec, Microsoft Windows is the most secure operating system. The survey covered the second half of 2006, in which period Microsoft Windows had 29 vulnerabilities, with 12 of highly priority or severe, and the turnaround for fixing them was 13 days. Red Hat Linux was the second, with 208 vulnerabilities and 58 days on average for fixing, and on the 3rd place Mac OS X with 43 vulnerabilities and 66 days on average for fixing.
Some other interesting facts from the report:
- of all databases, oracle had the most vulnerabilities, 168
- worms represented 52% of malicious code, trojans 45% of the top 50 malicious code samples
- home users were the most highly targeted sector, accounting for 93% of attacks
- spam made up 59% of all monitored email traffic
The report is available on Symantec web page: Symantec Internet Security Threat Report Volume XI: March 2007. The Flash presentation summarizing the report is also quite interesting.