Are Windows Server Safe ? Being a .NET developer, thisisthe first thing that came into my mind. Are the websites developed by me and deployed on the Windows server using IIS safe? According to Microsoft, they do not include OpenSSL and are not vulnerable to thisHeartbleed. Microsoft has their own encryption component called SChannel (Abbreviated as Secure Channel). But those clients which are running softwares on OpenSSL instead of Schannel are vulnerable to this threat