Cyber breach was limited, California water agency says

An investigation into a June 11 cyber attack claimed by an Iranian-linked hacker group found that hackers accessed one California Water Service customer’s online account using stolen credentials, but did not breach the utility’s internal systems or billing infrastructure, the company announced this week.

Cal Water has continued to investigate claims made on June 11 by an Iranian-linked hacker group that it breached Cal Water’s systems throughout the state — including some in Chico. When the claims were made, Cal Water said it activated its cybersecurity response plan and worked “around the clock” to conduct an investigation, being supported by the state and federal government, as well as cybersecurity experts.

Based on the investigation, Cal Water said the threat actor activity was limited to “unauthorized access to a small number of specific user accounts within two third-party service provider platforms.”

Read more at Government Technology