Health Service Executive ransomware attack

Health Service Executive ransomware attack
Date	14 May 2021
Location	Ireland
Type	Cyberattack, data breach, ransomware using Conti
Target	Health Service Executive (HSE); Department of Health;
Outcome	All HSE IT systems shutdown; Hospital disruptions and appointment cancellations; Department of Health IT systems shutdown; Medical data breach; Employee record data breach;
Suspects	Wizard Spider, ContiLocker Team

On 14 May 2021, the Health Service Executive (HSE) of Ireland suffered a major ransomware cyberattack which caused all of its IT systems nationwide to be shut down.

It was the most significant cybercrime attack on an Irish state agency and the largest known attack against a health service computer system. Bloomberg News reported that the attackers used the Conti ransomware. The group responsible was identified as a criminal gang known as Wizard Spider, believed to be operating from Russia. The same group is believed to have attacked the Department of Health with a similar cyberattack.

On 19 May, the Financial Times reviewed private data for twelve individuals which had appeared online as a result of the breach. On 28 May, the HSE confirmed confidential medical information for 520 patients, as well as corporate documents were published online.

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