Hamden cyberattack interrupts municipal services and email for weeks

On May 26, 2022, the Town of Hamden in Connecticut discovered malicious network activity that rendered municipal devices unavailable and resulted in encrypted systems. The town disconnected affected equipment and initiated network restoration. Nonemergency municipal services were disrupted, while government email remained impaired for several weeks, complicating administrative communications and service delivery. Emergency services continued operating. In a subsequent official financial disclosure, Hamden reported approximately USD 400000 in legal and IT consulting costs associated with the incident. The October 5 entry in the source dataset refers to later reporting rather than the actual attack date.