Hoag Memorial Hospital Presbyterian

Hoag Memorial Hospital Presbyterian spotted suspicious activity on its network on October 8, 2026, and confirmed on October 25 that patients' personal and protected health information had been exposed, possibly stolen. The filing names no entry point, no attacker, no patient count, and no specific data types. Seventeen days passed between noticing the intruder and learning what was reached, a measure of how long it took to realize that controls were not working.