What's happening: Apple this week pushed an update for Leopard and Snow Leopard systems that plugs a large number of security holes in Apple's version of Java, a package installed by default on those Mac OS X systems that enables a number of multimedia Web applications.
The new Java version fixes at least 14 vulnerabilities in the version designed for OS X 10.6 systems; the package put together for 10.5 Macs corrects more than two dozen security flaws. Mac users can grab the patches via Software Update or from Apple Downloads.
What to do: Patch your Mac.
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Apple issues security updates for Mac OS X