Ransomware Attacks Are Testing Resolve of Cities Across America

This has been the summer of crippling ransomware attacks. Wilmer — a town of almost 5,000 people just south of Dallas — is one of 22 cities across Texas that are simultaneously being held hostage for millions of dollars after a sophisticated hacker, perhaps a group of them, infiltrated their computer systems and encrypted their data. The attack instigated a statewide disaster-style response that includes the National Guard and a widening F.B.I. inquiry.

By Manny Fernandez, David E. Sanger and Marina Trahan Martinez