via Camille Singleton, writing at SecurityIntelligence, details a report (you will need to create an IBMID. Saving grace: it's free) issued by IBM's XForce, illuminating the rapid increase of Wiper-type destructuve ransomeware attacks. Read It and Weep.
"Destructive malware that disables access to data or destroys system functions has been expanding across geographies and industries over the past few years. Organizations previously thought safe from this form of cyber aggression increasingly find themselves affected, either directly or indirectly." via the IBM XSS IRIS Report" Combating Destructive Malware - Lessons From The Front Lines"