In Finland DVD's CSS was ruled to be strong technical copy protection system (tehokas tekninen toimenpide). In that exact case a person had made a program which bypassed it and published it. He was found to be criminally liable though he didn't get any fine/prison time from what I remember.

In Finnish criminal law the threshold is "significant harm", but given that there were already multitude of ways to get around DVD copy protection the "significant harm" clearly isn't very high bar. Also both distribution the method and actually using the method are both criminalized.

Finnish Copyright Act does individual to bypass copy protection to view the content, but it notably does say that you are not allowed to copy the work.

Unfortunately I cannot find the exact page right now, but I found one of the appeal documents from from https://www.yumpu.com/fi/document/view/38482300/1-helsingin-.... It's probably under https://www.cs.helsinki.fi/u/nikki/, but it's no longer available and Internet Archive is currently giving 503 when trying to access the old pages.