3. Microsoft Office 365 Suffers First Outage
Just a couple of months after its official launch, Microsoft Office 365, Microsoft's cloud productivity suite, suffered its first full-fledged cloud outage. The company blamed "a network connectivity issue" for the outage that hit several of its online services in August, including Office 365, Dynamics CRM Online and Windows Live SkyDrive. All told the outage lasted for roughly six hours and affected services hosted in one of Microsoft's North American data centers.