The most common exploits in the first half of 2011 were those targeting Oracle's Java platform, according to Microsoft's latest security report.
Java, a programming language with applications commonly seen in web interfaces, is installed on hundreds of millions of PCs worldwide. According to Tim Rains, director of Trustworthy Computing at Microsoft, this is why it is a target.
Attackers have been aggressively targeting vulnerabilities in Java because it is so ubiquitous.
This point was also made recently by a researcher from security firm Qualys, who found that the attack on RSA in March this year could also have been prevented by regular patching.
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