So, welcome to my new blog. Per my Bio - I am a Microsoft Employee and work (or have worked) with some of our largest customers to help them meet their security needs. What I post here (unless other references are made) is based on my own opinions and experiences and should not be considered an overall opinion of Microsoft as a company, a product team or any other specific group within Microsoft.
With regards to Security related discussions and recommendations especially - it is ALWAYS my first and foremost recommendation that you review and strongly consider all best practices outlined at http://www.microsoft.com/security, run appropriate firewall and anti-malware software and keep systems patched appropriately. Any thoughts or advice I may give is not designed to be a suitable replacement for those best practices.