Representational image.
Photo: 123RF
The demand was posted by REvil cybercrime gang on their blog.
Allan Liska, with cybersecurity firm Recorded Future, said the message appeared to be authentic and that the blog had been in use by that group since last year.
US-based Kaseya, which provides IT management software for managed service providers and small to mid-sized businesses, had its VSA software infiltrated with ransomware over the weekend.
Hundreds of organisations across the world have been affected, with at least 11 schools in New Zealand implicated as well.
The group has not responded to an attempt by Reuters to reach it for comment.
REvil demands $70 million ransom after Kaseya supply chain attack
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Over 200 US companies attacked by REvil, hackers demand $70 million in Bitcoin
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Kaseya ransomware attackers demand $70 million
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