Both exploits take advantage of the Blackhole exploit kit, an off-the-shelf hacking tool that was updated last month to prey on the Java vulnerability, such that users who run the Java plug-in can have their PC entirely compromised via their browser when they visit an infected site.

FORBES: Beware Fake Microsoft And Amazon Emails Exploiting Java Security Vulnerability

That site exploited a vulnerability in the Java browser plug-in.

CNN: Doug Gross,

Apple pointed out in its statement that Macs running the most recent operating system, OS X Lion, have not come with Java pre-installed and that the computers automatically disable the plug-in after 35-days of inactivity.

CNN: Apple: We were hacked, too

Apple pointed out in its statement that Macs running the most recent operating system, OS X Lion, have not come with Java pre-installed and that the computers automatically disable the plug-in after 35 days of inactivity.

CNN: Doug Gross,