Adobe has published a security bulletin APSB09-15 for security issue, fixing social engineering attack, addressed in Adobe Reader and Acrobat products: http://www.adobe.com/support/security/bulletins/apsb09-15.html Quoting Adobe bulletin APSB09-15 for issue descriptions: This update modifies a certificate that if compromised could potentially be used in a social engineering attack (CVE-2009-2982).