IT security analyst often predict or see trends happening across the web…here’s two articles from three years ago on memory scraping. Memory scraping involves information being loaded into memory and being removed and stolen by malware. Often the information may be encrypted and even though it is unloaded, what remains may be stolen. The SANS institute in 2011 flagged this as one of the most dangerous malware threats.
Are point of sale systems and other systems being targeted. Absolutely.
SANS prediction (several topics down on page)
Memory scraping malware goes after encrypted private information. – Networkworld
Here’s another – Malware Driven Pervasive Scraping – Help Net Security