The shifting sands of IT make the adage “you never know it all” ever more true as time goes by. I recall days when it felt like you could click through every major directory of Yahoo and know a little something about everything. I was a young man with a voracious reading appetite and an active imagination – both of which were thoroughly outpaced by the growth of the internet and my own developing maturity. Yet, knowing enough can be a formidable shield against the myriad threats lurking in the digital realm. Understanding your IT environment, from the administrators and software versions to…