There are some people won't touch anything to do with open source projects as they feel it might have issues with security. What does open source actually do for security or change how it works?
In college I was told over and over that SECURITY BY OBSCURITY IS NOT ACTUALLY SECURITY. So using thoroughly tested and examined security techniques from open source software is the gold standard.
There are known secure algorithms that cannot be cracked by modern computers. So, no reason to try and reinvent the wheel and just hope your way is better despite decades of refinement and research into modern open algorithms.
@ZenFriedRice@SamXavia I remember back in '98 getting in an argument over this with the company's chief architect. Finally had him back down when after he claimed "no professional security company just publishes their source code" I then replied "well, actually RSA BSAFE is distributed with all source."