Larger healthcare providers may temporarily divert ambulances and cancel some appointments following a ransomware attack but do not typically halt operations, but smaller healthcare providers may be left with little alternative. The clinic has yet to upload a breach notification to its website or report the breach to regulators, so the extent to which patient data has been compromised is not yet known.

The closure was necessary as the clinic was unable to access patient records. The clinic furloughed staff while systems were shut down and efforts are being made to restore systems. The asthma and allergy clinic has been closed for at least two weeks as a result of the attack, but the closure appears to be temporary. The Oklahoma Institute of Allergy Asthma and Immunology was forced to cease trading while it recovered from a cyberattack, with patients forced to wait to receive medical care or seek treatment at other facilities. Oklahoma Institute of Allergy Asthma and Immunology Halts Operations After Cyberattack

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