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Ransomware Attacks Disrupt Hospitals From Los Angeles to Romania and the NHS

Updated 1mo agoFirst seen May 25, 20263 sources

Ransomware attacks have repeatedly crippled hospital operations, forcing providers to divert care, lose access to critical systems, and in some cases pay attackers to recover. At Hollywood Presbyterian Medical Center in Los Angeles, malware encrypted files and disrupted the hospital's computer network, prompting executives to pay about $17,000 in bitcoin after attackers reportedly reduced an initial demand of $3.4 million. The outage interfered with administrative functions and highlighted how cyberattacks on healthcare can create direct patient-safety risks.

The threat later scaled across national healthcare systems. The WannaCry outbreak spread to nearly 100 countries and severely impacted the UK's NHS, knocking hospitals and clinics offline and disrupting appointments and treatment. In Romania, a ransomware attack on a healthcare IT platform left multiple hospitals offline, underscoring how attacks on shared digital infrastructure can cascade across many facilities at once and paralyze care delivery well beyond a single organization.

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Ransomware Attacks Disrupt Hospitals From Los Angeles to Romania and the NHS
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EVENT TIMELINE

How this story unfolded

5 events from the most recent confirmed update back to the earliest known activity.

5 EVENTS
Feb 13, 20242y ago

Ransomware attack knocks Romanian hospitals offline

Hospitals across Romania were taken offline following a ransomware attack on an IT platform used in the healthcare sector.

May 12, 20179y ago

WannaCry ransomware outbreak hits organizations in nearly 100 countries

A massive global ransomware campaign spread across nearly 100 countries, including major disruption to the UK's NHS and other organizations worldwide.

Aug 18, 201610y ago

Locky ransomware campaign targets hospitals

A large Locky ransomware campaign was reported as targeting hospitals, marking a broader wave of healthcare-focused ransomware activity months after the Hollywood Presbyterian incident. The campaign represented a distinct threat development affecting the healthcare sector.

'Massive' Locky ransomware campaign targets hospitals | ZDNET
Feb 10, 201610y ago

Hollywood Presbyterian restores systems after paying ransom

The hospital paid about $17,000 in bitcoin to the attackers after an initially much higher demand was reported, and full service was restored. CEO Allen Stefanek said paying was the quickest way to regain access to encrypted files and resume administrative functions.

Feb 5, 201610y ago

Hollywood Presbyterian detects ransomware attack

Hollywood Presbyterian Medical Center in Los Angeles began experiencing computer problems from a ransomware attack that disabled its network and disrupted hospital operations.

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Ransomware Attacks Disrupt Hospitals From Los Angeles to Romania and the NHS | Mallory