This article looks at vulnerabilities detected in MacOS X in the first half of 2006. It compares these vulnerabilities to those detected in 2005, providing an overview of the evolution of threats targeting this increasingly popular platform. The number of vulnerabilities identified in components where remote attacks are possible increased in comparison to the same period last year. The most popular was probably the local passwd exploit (a zero day based exploit) reported on 03.02, which was used to hack the system during the rm-my-mac competition.”]
Source: https://securelist.com/malware-evolution-macos-x-vulnerabilities-2005-2006/36095/