Skeuomorphic design is common in desktop computer and mobile telephone applications. Sometimes interfaces and cues from the real world are used to good effect (swiping to move backwards and forwards in a eBook) and sometimes to terrible effect (rotary dials that need precise circular mouse motions on oscilloscopes).
Whilst these often cause limitations and problems in terms of usability and accessibility, are there any examples of skeuomorphic design leading to a security vulnerability?
An example I can think of - most intruder alarm panels use numeric keypads (with some special keys) and limited size (2 rows x 40 chars) LCD displays. This limits both input (limited alphabet for codes) and the output (status updates are often like "ZN 3 INPT OMIT"). If a mobile phone app to control the alarm mimics the panel exactly, we are still constrained by the same limits.