Water and Waste Services Regulatory Authority in Portugal suffers Ransomware Attack.

November 10, 2025

INCIDENT

ERSAR, Water and Waste Services Regulatory Authority in Portugal, suffered a ransomware attack. The company reports significant disruption to its information systems . Access to the ERSAR portal, website, and forum is temporarily unavailable. "ERSAR expects to reestablish its systems and infrastructure as soon as there are guarantees that all systems are secure and fully operational." Until the systems are restored, the reporting and information communication systems with ERSAR will remain inactive. ERSAR opted to use alternative means to communicate with managing entities, such a emailing reports.

Incident Date

March 31, 2025

Location

Portugal

Estimated Cost


No cost values disclosed.

Type of Malware

No Malware identified