*** Only clients host under Windows Operating System will be affected ***
Following the recent Microsoft official announcement Microsoft Security Bulletin MS17-010 - Critical, this security update resolves vulnerabilities in Microsoft Windows which is victims of malicious “WannaCrypt” software.
For further reference about the vulnerabilities:
(A) What Do You Need To Know About This Update?
kindly refer to the official blog by Microsoft:
(B) General information on ransomware:
Ransomware stops you from using your PC. It holds your PC or files for "ransom".
Here is the sample of ransom demand shown on infected machines (image credit to Talos )
(C) Recommended Action: Ensure all Windows-based systems are fully patched and SMB ports (139, 445) blocked from all externally accessible hosts.
(D) Recommended preparation: We recommend all users to run a full data backup for their web files and databases to their local desktop/laptop/external drive before any server reboot.
Last but not least, please note that all Managed services clients will be notified privately on the Windows update arrangement.
Those unmanaged services client who is interested on this update may contact support team by submitting a ticket at https://support.signetique.com/en/support/tickets/new choose Technical Support (Dedicated Server / VPS / Cloud / Colocation)
Technical Support Department