RIM have issued a critical advisory for BES versions 4.1.3 through 4.1.5 inclusive. It has to to with a security hole in the PDF distiller. There are patches available at the RIM site.

The official RIM advisory is available at the RIM support center.

Contact us to set up a time to install the security update or to upgrade to 4.1.6. Customers on the BlackBerry Checkup Program will have the fix installed as soon as possible.