What does "IP restriction in a limited way" means?

 

Hi all,

in Dassault material regarding IP Protection and Export control, I can read that IP can be completely invisible or it can be "exposed in a limited way". But what does that even mean?
For me, IP Control means that an object is visible or not, but here it seems like it is possible to see some data even if you are prevented to see the object?!

Does anyone know about this? 

 

Thanks in advance,

//Lennart