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Macquarie Health Corporation says it is still experiencing “significant impacts” from the ransomware attack that it made public on Thursday last week, though the organisation characterised it as a “cyber incident”.
In response to a query from iTWire, a spokesman said on Tuesday: “Fortunately, our recovery process is progressing and our ability to deliver care to our patients and support our clinicians has not been compromised.”
The breach was staged by a ransomware gang known as Hive that only attacks systems running Microsoft’s Windows operating system.
In a fresh advisory, MHC added: “Thank you to our staff for their hard work continuing to deliver patient-centred care with many of our systems remaining off-line.
“We apologise for any inconvenience this disruption may cause and thank our staff, patients, and clinicians for their patience during this situation.”
The Hive gang, which claims to have encrypted the MHC files on 25 September, has not said anything on its website to indicate whether it has approached MHC to negotiate a ransom.
Hive has been described as a double-extortion ransomware group — “making their money off of a two-pronged attack: exfiltrating sensitive data before locking up the victims’ systems” — that first made its presence known in June this year.
Jim Walter and Juan Andres Guerrero-Saade of security shop SentinelLabs said in a blog post about Hive in August: “The group is notable in its undiscerning choice of targets, having no limits when it comes to healthcare providers and hospitals, as evidenced in a recent attack on Memorial Health System hospitals in Ohio.
“Hive ransomware is written in Go to take advantage of the language’s concurrency features to encrypt files faster. Hive remains active with as many as 30 victim companies listed on its Hive Leaks onion site at the time of writing.”
Macquarie Health has 12 hospitals which provide surgical procedures, rehabilitation and mental health clinics, skin imaging and dermascopy, medical systems; cosmetic procedures, e-health informatics and data solutions.
The units under its banner are Macquarie Hospital Services, MacRehab, Macquarie Medical Systems, Derma Medical and Machealth eSolutions.
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