Microsoft has released their monthly security updates Microsoft Security Updates 04/09/13
Microsoft has just released the first round of today's security updates

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Microsoft Security Updates 04/09/13 #2
Here the second round of today's security updates

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Pwn2Own IE Vulnerabilities Missing from Microsoft Patch Tuesday Updates
Microsoft's monthly Patch Tuesday security updates released today did not include patches for Internet Explorer vulnerabilities used during the Pwn2Own contest one month ago

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