Recently Microsoft has disclosed a critical vulnerability in almost all versions of Windows. Windows systems especially those which are running websites should immediately install a patch KB2992611.
According to Microsoft advisory this vulnerability resides in the Microsoft secure channel (schannel) security component that implements the SSL and TLS protocols.
Due to this vulnerability, specially formed packets makes it possible for the intruders to execute attack code by sending malicious traffic to Windows based servers. This vulnerability is rated critical for both client and server versions of Windows systems.
We have now patched all of our servers against this vulnerability including the shared hosting and managed servers.