gapNot found in the next editions, but one of them is only partly captured, so this is not evidence it faded (D36).
A next edition is a partial capture; not finding the trend there is not evidence it faded.
A trend is graded on whether the publisher keeps it, never as a hit or a miss (D6, D33).
All captured fields
rank
22
section
Security
subject
Portable Security
page
15
confidence
high
note
Quote is the first sentence of the paragraph under the title (several trends share the page). page is the slide number in the archived SlideShare transcript.