The update is rated "critical" because of the risk of remote code execution attacks via rigged PDF files.

Two of the bulletins are rated "critical" for all versions of Microsoft's flagship operating system, including Windows 7 and Windows Server 2003 R2.

The hackers hit the server hosting the software that Apache.org uses to it to track issues and requests and stole passwords from all users.

Researchers at the University of Illinois at Chicago have received a $1.15 million grant from the National Science Foundation to build a new, secure computer operating system.

Five of the 11 bulletins will be rated "critical," Microsoft's highest severity rating. The flaws affect all versions of Windows, including the company's newest Windows 7 operating system.

A Bank of America (BofA) computer specialist will plead guilty to charges that he hacked the bank's automated tellers to dispense cash without recording the activity.

There is more that can be done with this latest PDF hack that may not be immediately apparent. We could start seeing persistent PDF worm attacks.

Adobe is suggesting that users configure its PDF Reader product to limit the damage from an attack.

The Firefox 3.6.3 update is rated critical. It fixes a flaw that was exploited at this year's CanSecWest Pwn2Own hacker challenge.

Over the last week, Apple has shipped security patches to cover 88 vulnerabilities in Mac operating system, 16 holes in the QuickTime media player, 7 flaws in iTunes and a security bug in the AirPort Base Station.