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U.S. utility giant Itron discloses a security breach

Securityaffairs.Co •Pierluigi Paganini • April 27, 2026

Itron detected unauthorized access to part of its IT environment on April 13, 2026, and launched incident response and notified authorities. Itron disclosed a cyber incident involving unauthorized access to part of its internal IT systems, detected on April 13, 2026. The company activated its incident response plan, engaged external cybersecurity experts, and notified law […]

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Itron Reports Cybersecurity Breach, Operations Unaffected Itron, Inc. disclosed a cybersecurity incident on April 13, 2026, after unauthorized access to its internal systems was detected. The company activated its cybersecurity response plan, engaged external advisors, and notified law enforcement. Itron confirmed that the breach did not affect customer-hosted systems and that operations continued without material disruption. The unauthorized access has been blocked, and no further activity has been observed. Itron expects a significant portion of the incident-related costs to be covered by insurance. The investigation into the breach's scope is ongoing, and no ransomware group has claimed responsibility for the attack. The company reported a stock decline of approximately 10% following the disclosure. Itron serves critical infrastructure sectors, including energy and water management. 11 sources 49

U.S. utility giant Itron discloses a security breach

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