While working he notices someone seems to be accessing his PC, and his work environment
Joe closes the backdoor access to his network with a unique password. He now has WPA-2 encryption.
Glad I did my homework & fixed it
Due to the restrictions from the pandemic Joe's office allows him to log on to the company's systems from home
He realizes his wireless cable connection & un-encrypted router makes it easy for others to gain access to his home & work systems ... so he researches how to close this backdoor access route
Make sure the configuration of your home system has appropriate passwords to prevent unwanted intruders. Check your router user manual or use your office help desk for support, if you can.