Bishops in Spain have declared in their synod paper that illegal streaming breaks one of the 10 commandments:
http://www.telegraph.co.uk/news/2016...ilm-downloads/
I always thought that the 10 commandments were set in stone, but whilst researching this article, it appears that interpretation and the numbering are different according to different religions.
This explains why some say this sin comes under no 7 and others no 10!