Microsoft Malware Protection Center (MMPC) is now Windows Defender Security Intelligence (WDSI). Watch out for even more info about threats and protecting you and your Windows computer.
Help and FAQ center
Windows Defender Security Intelligence provides guidance on how you can protect yourself using Microsoft antimalware solutions. It also provides helpful information about methodologies and criteria we use to analyze and label threats. It provides in-depth information about threat types and specific threats, as well as general tips on how to stop these threats and recover from their impact.