Many businesses are still not sure about security and cloud computing solutions. Some think it is a to risky to allow a 3rd party to store valuable business data on the internet. Some industries even have regulations preventing data to be stored by 3rd parties or offshore.
It is true data security is an ever increasing problem for businesses of all sizes, but companies like Microsoft are investing large amounts of resources and funds into research and development for securing data. When Microsoft announces a product like Office 365, you can rest assured that they have their best minds looking at security. Many of these are industry leaders in securing data for enterprise.
