IE 11 is not supported. For an optimal experience visit our site on another browser.

What is the cloud? Inside a secret Microsoft site that’s securing your data

03:38

We hear the term every day, but many people online aren’t sure what “the cloud” actually is. To investigate the internet’s big mystery, NBC’s Tom Costello gained exclusive access to a secret site in Virginia owned by Microsoft – one of many cloud computing giants – where they use encryption, firewalls, anti-virus software and more to secure and protect your data.