Guideline: Build for ergonomics and usabilityPart of: Development Security Guidelines
Overview: Building a set of Guidelines for Security and Privacy
No only business applications, but security controls in applications and in general needs to be intuitive to use. When security controls and checks are complicated people will get annoyed at best, or ignore it at worst.
|Dilbert, Usability, 2007-11-16|
Security can already be annoying by itself, just don't make it harder!
More information from OWASP about Building Usable Security.