In ransomware cyberattacks, hackers steal a victim’s sensitive data and threaten to publish or block access to it unless a ransom is paid. Across the globe each year, millions of ransomware attacks are carried out on businesses, cities, and organizations, costing billions of dollars total in payments and damages. Many technologies can thwart such cyberattacks, but MIT Computer Science and Artificial Intelligence Laboratory (CSAIL) and Department of Urban Studies and Planning (DUSP) researchers believe there’s more to solving the issue than deploying the latest software.