This article from iHealthBeat mentions the recent release of a primer on cybersecurity (PDF) by the Workgroup for Electronic Data Interchange (WEDI). It notes that healthcare data compromised in the first four months of this year (2015) is almost triple that of the five preceding years (2010-2014). It provides a brief overview of techniques attackers use to gain access to the data and the countermeasures that data stewards can use to prevent and respond to these attacks. It is a brief document but a good read for those wanting to get a sense of cybersecuity in the age of explosive healthcare information growth.