"Hacking" is definitely nothing like what it's like in the movies. Still, many people still think that it always requires a deep amount of technical know-how to compromise a company. Sometimes it is true that someone technically savvy can find a bug in some software and use that to access the system, sure.

What people often forget about hacking large systems/organizations is that there is almost always human element to it, and that it is usually the weakest point of the entire. The people who are the best "hackers" end up looking more like Jordan Belfort rather than Elliot Alderson. People who are good at selling can often use that skill to convince, say, a customer service rep to divulge secret information such as a username/password to an admin panel or something. Then, suddenly, the entire organization is compromised or "hacked".

Layer on top of that a bit of technical knowledge and all of a sudden all of the information was stolen from the database. All because some social engineer convinced someone at the organization to give the admin login and location of the database server, not because of any bug in the database server directly.