Verizon’s Data Breach Investigations Report for 2017 shows big growth in the reported number of ransomware attacks and incidents involving cyberespionage.

A lack of security common sense still plagues businesses with 30 percent of phishing emails opened by campaign targets. Worse, 12 percent click on the attachments inside those phishing attacks, giving crooks easy access to systems to snarf up credentials that are later used to pull off financially or espionage motivated crimes. That’s the big...