Microsoft just release a guide with 113 pages that covers many aspects of Microsoft Security strategy, terminologies, tools and a guideline to approach in different stages. This guide is not target only for Security Professionals, as matter of fact all IT Professionals should read this to better understand Security methodology. This guide is divided in 5 stages:

1. Receive Microsoft Security Release Communications
2. Evaluate Risk
3. Evaluate Mitigation
4. Standard or Urgent Update Deployment Timeline
5. Monitor System

Besides that you also have a glossary that includes the most common attacks and security terms.

Download this guide from the link below and make sure to read it all (maybe during thanksgiving holiday)
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=c3d986d0-ecc3-4ce0-9c25-048ec5b52a4f
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