Cyberattack forces major US health care network to divert ambulances from hospitals CNNAscension healthcare network disrupted by “cyber security event,” interrupting clinical operations CBS ChicagoAscension Health, nation’s largest Catholic hospital chain, victim of cyberattack disrupting operations Fox BusinessAscension hospital cyber attack disrupts patient’s visit for potential cancer diagnosis FOX 2 DetroitIssues from cyber security event continue at Ascension KXAN.com