There were extremely few instances where Microsoft was affected by Heartbleed and was running very few Linux servers (in noncritical functions). These very few

There were extremely few instances where Microsoft was affected by Heartbleed and was running very few Linux servers (in noncritical functions). These very few instances were enumerated and closed almost immediately. There is only one team I know of that was affected - however a scan was done to confirm this. Patching for customers in Azure can be done through normal OS channels, though patches can be forced and base images an be modified to close holes (this was done).