https://www.siliconvalley.com/2021/04/14/after-ransomware-attack-union-city-hiring-cyber-security-manager/ > Union City is hiring a cyber security manager about a year-and-a-half after a ransomware computer virus brought digital city systems to a screeching halt and forced a major back-end overhaul of file systems, security protocols and training. > “We can’t let our guard down,” Mario Vallejo, the city’s chief technology officer said in an interview Wednesday.