How to log into a computer? who is responsible for tech support and updates?

https://youtu.be/-AK4cIkwngs
this link is the video about the facility that we are writing the employee hand book on. I only am responsible for the security section of the hand book

Security: Security has taken on a different perspective in the digital age and since 9/11. Who is in charge of the building security, or network security? Who deals with the robber in the room? Do we have training and drill requirements for dealing with certain types of threats? Companies are putting those things in the handbook a lot more. Confidentiality of information and computer/data security is a huge concern for many organizations. How to log into a computer? who is responsible for tech support and updates?