Is that a third party kernel extension? Sounds like a buggy one if so, and if it’s this <https://www.oneperiodic.com/products/handsoff/> then it might be lessening security instead of increasing it.
Yeap. I wouldn't say lessening unilaterally but with the nuance of changing the attack surface in different areas. IIRC "Hands Off!" is a firewall and an app firewall that can selectively limit disk and network access.