The business major needs cyber security to protect their stock from any kind of disruption. Also to protect the site so tha people can buy product from their without any interruptions. It is also important that their sites are trustworthy if there was an attack that took people information like credit card and address whatever is needed to make the purchase a lot of people would not like that and maybe stop using the site.
The medial field like a doctor is also important because there is a lot of personal information that they keep and if that were to be taken and sold on the internet this is also another situation where people would not like that to happen. Erm what other source would relate to cybersecurity.
The computer science major relates to cybercecuirty because everything that a person with a computer science degree is doing is on a computer that creates and maintain software. They got to make sure that none of their software gets leaked and sold so what they could do is make a cybersecurity program. They may not create something can match someone with a cybersecurity degree but these two majors are closely similar.