Adobe has released a "critical update" for its Adobe Flash Player software on both Mac and Windows, addressing a zero-day vulnerability that gives complete control over comprised systems to hackers. The vulnerability affects all Macs with Adobe Flash Player version 12.0.0.43 and earlier and all users are urged to update immediately. Adobe has a site where users can check what version of Flash they have installed. The latest version of Flash can be downloaded from Adobe's website. Adobe has released security updates for Adobe Flash Player 12.0.0.43 and earlier versions for Windows and Macintosh and Adobe Flash Player 11.2.202.335 and earlier versio