Ajuntament de Calvià

Calvià Town Hall serves as the local government authority for the municipality of Calvià on the island of Mallorca, Spain, operating under the official name Ajuntament de Calvià. It provides essential municipal services to residents, including civil registry management, urban planning oversight, tax administration, and public infrastructure maintenance. The organization handles sensitive citizen data as part of its administrative functions, ranging from personal identification details to property records and financial information. Its operations are concentrated within the Balearic Islands region, specifically serving the population and visitors of this Mediterranean coastal municipality known for its tourism industry.

A significant cyber incident on January 13, 2024, compromised the town hall's IT infrastructure, threatening the security of resident data and disrupting municipal operations. The LockBit ransomware group claimed responsibility for the attack, listing Calvià on its data leak site and indicating potential theft or encryption of information. Forensic investigations revealed nearly 50,000 individuals had their personal data exposed during the breach. In response, the municipality activated a crisis committee and engaged external cybersecurity experts to contain the incident and assess damages. The attack highlighted vulnerabilities in the local government's digital infrastructure while demonstrating its operational reliance on technology for citizen services and record-keeping. Recovery efforts focused on restoring critical systems and investigating the full scope of compromised data categories.