I work in IT. Most systems have laughable security. Passwords are often saved in plain text in scripts or config files. I went to a site to help out a very large provincial governmental organization move some data out of one system and into another. They sat me down with a loaner laptop and the guy logged me into his user account on the server. When I asked for escalated privileges, he told me he'd go get someone who knew the service account passwords.

After a few minutes, I started poking around on my own... And had administrative access within an hour. I could read the database (raw data), access documents, start and stop the software, plus, figured out how to get into the upstream system that fed data to this server... I was working on figuring out the software's admin password when the guy came back. I'm sure that given some more time, I could have rooted the box because the OS hadn't been updated in years.