You'd be surprised. In the past I was on a big project at company with multi-billion $ revenue. They got caught with their pants down on an audit once because p

You'd be surprised. In the past I was on a big project at company with multi-billion $ revenue. They got caught with their pants down on an audit once because people would not only commit credentials into internal repositories, they were usually not encrypted at all, among other deeper issues. It sparked a multi-year long project of incorporating a secrets management service into the 1000+ repositories and services the company used. Found a loooooot of dead bodies, tons of people got fired during the process. After that experience I imagine this practice is fairly common - people, even smart developers, don't always seem to be able to comprehend the blast radius of some of these things. One of my favorite incidents during this clean-up effort was, the security team + my team had discovered a lot of DB credentials were just sitting on developer's local machines and basically nowhere else that made any kind of sense, and they'd hand them around as needed via email or message. So, we made tickets everywhere we found instances of this to migrate to the secret management platform. One lead developer with a privileged DB credential wrote a ticket that was basically: "Migrate secret to secret management platform" and in the info section, wrote the plaintext value of the key, inadvertently giving anyone with Jira read access to a sensitive production database. Even when it was explained to him I could tell he didn't really understand fully why that was silly. Why did he have it in the first place is a natural followup question, but these situations don't happen in a vacuum, there's usually a lot of other dumb stuff happening to even allow such a situation to unfold.