Kim Ditto from Microsoft had wrote a great post about Spynet what it is and what it is benefits
So have you ever wondered what the Microsoft SpyNet opt in page is really all about?
Microsoft SpyNet is a cloud service that allows the FEP or MSE client on your computer to report information about programs that exhibit suspicious behavior to the Microsoft Malware Protection Center (MMPC) researchers. When this information is reported, definitions for previously unknown threats can be created and distributed, minimizing the time that a new threat is spreading in the wild before protection is available. (Note: older clients, like FCS and Windows Defender, also participate in SpyNet, but to get the full benefits of SpyNet, which includes Dynamic Signature Service, you should move to FEP or MSE.)
Additionally, when your FEP or MSE client reports new malware to the Microsoft SpyNet cloud service, the Dynamic Signature Service can recognize when a definition is available but not yet released, and deliver that definition for that specific threat in real-time from the cloud. Upon delivery of the dynamic signature, the threat will be detected and can be removed from the system
Hey – here’s a thought. Take 3 minutes and watch this – Microsoft SpyNet and the Dynamic Signature Service in action:
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