Relative "safety" and "security" of non-upgradable Mac OS?

[Madhatter32]

Considering that OCLP disables the SIP and patches with an old version of Wifi -- the best that can be said is that the vulnerabilities are different, not necessarily greater or less.

For a good read on OCLP security check out: https://forums.macrumors.com/threads/security-for-oclp-opencore-legacy-patcher.2406586/page-9

My pleasure. Check out the above referenced thread for more information.