This is an advisory regarding an urgent security vulnerability. There is a widespread ransomware attack going on currently (affecting FedEx, and 57,000 other companies globally). To safeguard against cyberattacks of this nature, Microsoft advised in its recent security bulletin to apply a security patch to non-infected Windows machines. Given the pervasiveness of security threats in today’s landscape, now is also a good time for you to review and test your backup procedures.
To address this and other security vulnerabilities, please make sure on an urgent basis that your servers and desktops are patched according to this Microsoft security bulletin: https://technet.microsoft.com/en-us/library/security/ms17-010.aspx#ID0ETZAG.