Hello to all:
Beside my main responsibility of Operations Manager I recently was assigned the role Information Security Officer for the organization I work. I worked as a Network Administrator in the past within other companies and dealt with basic security issues. I'm currently researching and learning more about advance security related issues and concerns. Since I've been out of the game for a while any tips, advice and help will be greatly appreciate.

PS: I refer this as a game since this is like a "cat and mouse chase" and in no way I'm demeaning the importance of such critical issue.