MobileMe, Apple's subscription-based online services and software, was updated to fix a vulnerability which allowed an attacker with a "privileged network position" to view a person's email aliases because MobileMe was operating over unsecure HTTP. Apple fixed the issue by using SSL or a Secure Sockets Layer--a security protocol.

As the usual, you should install these as soon as possible. To learn more about each update--and to download them manually--visit .

Adobe released six security updates this month to patch vulnerabilities in Adobe Flash Player, ColdFusion, LiveCycle, BlazeDS, Reader, Acrobat, and Shockwave Player (If you don't know what some of those are then it probably doesn't affect you).

This month Adobe released two updates for Adobe Flash Player, one rated important and the other rated critical. , CVE-2011-2107 addresses vulnerabilities in "Flash Player 10.3.181.16 and earlier versions for Windows, Macintosh, Linux and Solaris, and Adobe Flash Player 10.3.185.22 and earlier versions for Android" and is rated important. If you visited a malicious site an attacker could, on your behalf, take actions on a website or a webmail provider--essentially hacking you.