Google announced they are moving away from Microsoft Windows due to security concerns. An article in the Financial Times stated that the move was a ‘security effort’ Google employees said it was also an effort to run the company on Googles own products, including its forthcoming Chrome OS, which will compete with Windows. Your operating system choice does not equal security. If your company employs experts in Linux then it makes sense to standardize on Linux. If you employ expertise in Windows rolling out Linux, OSX, or any other operating system is asking for problems.”]
Source: https://hellnbak.wordpress.com/2010/06/02/osnotequalsecurity/