I just finished a CS class in Information Security that was so strict about plagiarism that you had to cite your source for every little bit of information you

I just finished a CS class in Information Security that was so strict about plagiarism that you had to cite your source for every little bit of information you look up on google while you were programming. This wasn't just code you were copying (which was strictly forbidden unless it was pseudocode), but googling basic things like YouTube videos of concepts covered in class like public key encryption. My works cited page I submitted with my last assignment was at least 5 pages long. Meanwhile in the professional world, it's a completely different set of rules.