Computers worldwide have been hit by Ransomware. It’s also known as WannaCry and WannaCrypt. It’s a cyberattack that freezes electronic files until the owner pays ransom. The U.S. has not been hit as hard as some other countries, but businesses and government agencies and individuals – including in Wisconsin - should take precautions. WUWM spoke with David Schroeder, an IT expert at UW-Madison.