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Energy, water & OT — perimeter and process failures, with an OT-adjacent halt

From CTI Weekly Summary — 2026-W25 (Jun 15 – Jun 21, 2026) · published 2026-06-22

Critical-infrastructure exposure ran from cyber intrusion to physical mishandling. Handala's Cal Water breach (above) and the Rockwell ICS advisory batch (§ 3) bracket the cyber end; at the process end, a Kyushu Electric subsidiary lost an unencrypted portable SSD holding ~10.9M customer records — reportedly Japan's largest personal-data breach (BleepingComputer, 2026-06-14; daily 06-14). The Gentlemen's Mackay Sugar claim (§ 2) halted milling at two of three mills — an OT-adjacent production impact even without confirmed OT-network compromise.