Apple has issued software updates for its Mac OS X operating system, Safari for Windows and Java that patch over 50 bugs.
The 44MB "Security Update 2009-001" software update for Mac OS X addresses a massive 28 security issues.
In addition the Java for Mac OS X 10.5 Update 3 is a 2.9MB file and an update for Safari 3.2 for Windows is also available.
Apple says: "Security Update 2009-001 is recommended for all users and improves the security of Mac OS X. Previous security updates have been incorporated into this security update".
The updates can be downloaded manually from Apple's site (where there is more information on what the updates contain) or via your Mac's built-in software update feature.