It mostly started becoming relevant in the 90s, back then Germany didn't even have any legislation on that front at all, just a very general paragraph about "computer/information system sabotage" they had to throw at phreakers and other early hackers, for the lack of any other law.
By the late 90s they tried to fix that situation, but as usual, only for the worse; The so called "Hackerparagraphs" were enacted, which literally banned the ownership of "hacking tools", that by legal definition technically even included stuff like a mundane Linux nmap or security tools distributed by the BSI [0].
It mostly started becoming relevant in the 90s, back then Germany didn't even have any legislation on that front at all, just a very general paragraph about "computer/information system sabotage" they had to throw at phreakers and other early hackers, for the lack of any other law.
By the late 90s they tried to fix that situation, but as usual, only for the worse; The so called "Hackerparagraphs" were enacted, which literally banned the ownership of "hacking tools", that by legal definition technically even included stuff like a mundane Linux nmap or security tools distributed by the BSI [0].
[0] https://www.tecchannel.de/a/das-bsi-und-202c-der-hackerparag...