Corrine Administrator, Microsoft MVP, Security Analyst Staff member Joined Feb 22, 2012 Posts 10,151 Location Upstate, NY Jan 14, 2014 #1 Adobe has released security updates for Adobe Reader and Acrobat XI (11.0.05) and earlier versions for Windows and Macintosh. These updates address vulnerabilities that could cause a crash and potentially allow an attacker to take control of the affected system.I If you are still using Adobe Reader, it is advised that the update be applied ASAP. Additional details about the update are available in my blog post here. Update checks can be manually activated by choosing Help > Check for Updates. Adobe Reader XI (11.0.06) for Windows is available here: Adobe - Adobe Reader : For Windows. Note: UNcheck any pre-checked additional options presented with the update. They are not part of the software update and are completely optional. Additionally note that Adobe Air has been updated to version 4.0 and is available here.