I have a strategy consulting and sales background, but what I read about IT and IT Security sounds fascinating as an outsider. I'm considering a career switch, but would need to know quite a bit more. 

IT Security is what interests me the most, but do I need to learning a programing language? If so which? Do I need to study for and pass certifications to be taken seriously? How does one learn more and take the first step. 

Reading material (books, blogs, links, or even video) or comments are much appreciated. I'm not sure if it is the right switch for me, but I can tell you I'm interested, humble moving forward, and curious. Pen testing, encryption, & networks sound the sexiest but that is a far way off. Thank you for any help in advance.