[progbits]

> that effectively controls access

Not very effective, is it?

I assume this means something else in lawyer speak.

[Mindwipe]

Effective means "has an effect".

i.e. you cannot put a piece of paper in the box with the words "this is a technical protection mechanism" and claim it is.

But it doesn't mean that what you do has to be infailable, or meet some arbitrary level of doing it's job well, no.