Minecraft 1.21.1
NeoForge 21.1.187
Apotheosis 8.3.6
SecurityCraft 1.10

If you get a tool with the radial affix for mining in an NxN area, you can break SecurityCraft's reinforced blocks. Which are blocks that cannot break unless the original owner mines them or remove them with a special tool.

Have you reported this to SecurityCraft? Apoth calls vanilla code to break the additional blocks in the target radius (ServerPlayerGameMode#destroyBlock) which fire all the appropriate events for block breakage. If SC is not listening to those events and handling behavior accordingly there isn't much I can do.