There are a million bots scanning all of IPv4 space every minute looking for automated exploits. You don't need someone dedicated looking to get into trouble.
Get someone else to manage it for you while you learn. Security is an emergent property of every part of the stack, not a separate thing you can do after the fact. Get a handle on the fundamentals, too: fundamentals of TCP/IP, HTTP/S, etc.
Well yeah, solving problems and thinking critically and learning are hard and boring. "Uncle Bob" gives you handy alhorisms you can spam on your next pull request and then feel like you've done something.
That's as ridiculous as saying "integer division will be useless in 20 years". Sometimes relational databases really are the optimal solution to certain problems. I really wish CS had better authority figures, although we shouldn't need them in the first place.
This is what happens when you hire 20-somethings who don't know how computers actually work to build your entire business. You either learn about relational databases in school, or through experience. Relational algebra has been around for half a century, at least. If someone doesn't know about its utility, it's a failure of the education system, or a failure of corporate incentives.