As reported by Mikko Hypponen few mins ago, there was some problem with Safari and https://update.microsoft.com
Does anyone else get a SSL warning when connecting to update.microsoft.com with Safari?
— Mikko Hypponen (@mikko) June 17, 2012
Appears to be, that all major browsers reject certs from:
Support, Technet and MSDN subdomains from HTTPS redirected to HTTP.
p.s. Good morning.