Ransomware attacks are increasingly becoming a public affair, experts say. The UK’s National Health Service was hit hard by WannaCry and NotPetya attacks in 2017. In recent weeks, ransomware went public again, with attacks targeting two of the world’s busiest ports. The attacks in Atlanta, Baltimore, San Diego and Barcelona show that attackers are using ransomware to disrupt highly visible targets, whether it’s for monetary gain or to sow chaos for a time. All told, ransomware is expected to cost businesses and other organizations about $11.5 billion by 2019.”]