Information technology in general is important across basically all industries these days. But, because there are different types of sensitive information, and different ways that information can be used for you, against you, and to manipulate you, there are different sets of protection and regulation in specific circumstances.
For instance, in the real estate industry, particular care and specificity is involved in with things like regulatory agencies, protection against hacking, bankruptcy involvement, best practices from client and consumer standpoints, and being sure to pay attention to mail legitimacy.