Unless you really hate your job or are having trouble finding work, you may not want to go down this path. We need more informations about your skills. Have yo

Unless you really hate your job or are having trouble finding work, you may not want to go down this path. We need more informations about your skills. Have you dabbled in programming before? What languages? Do you use a unix-like operating system? Windows? How comfortable are you with inner workings of your preferred operating system? If you use unix, how comfortable are you comfortable with command line tools like grep, sed, and/or awk? Do you primarily manage your system using a GUI? WRT security, do you know much about IP? Are you aware of differences between unix sockets and ip sockets? Are you aware of common vulnerabilities for outward facing services? (ie: sql injections) Without knowing a bit more about you, it's difficult to say. I can't imagine it'd be a good move for someone with an MBA in a separate field to move to the IT field if the above questions are not trivial to you.