A secure network starts with the cables, ports and switch settings people...

https://xeon-wiki.win/index.php/What_Are_the_Security_Risks_of_Messy_Cable_Management_in_a_Rack%3F

A secure network starts with the cables, ports and switch settings people rarely see. A misplaced patch lead can send traffic where it shouldn’t; default switch passwords can help an intruder move across the office. See why the basics matter.