Do not access PDF files from untrusted sources! Adobe has recently outlined a number of security vulnerabilities affecting Adobe Reader and Acrobat. It is important for you to remember not to open unfamiliar or unexpected PDF files, particularly those hosted on websites or delivered as email attachments.
An attacker could exploit these vulnerabilities by convincing a user to open a specially crafted PDF file. By opening a malicious PDF file, your system could become infected with detrimental spyware. The solutions are to (1) update the program, (2) disable JavaScript in Adobe Reader and Acrobat and (3) prevent Internet Explorer from automatically opening PDF files. Contact WingSwept to see if you have the affected versions (Reader and Acrobat 9.3.3, earlier 9.x versions, 8.2.3, and earlier 8.x versions) or to execute the security solutions.