According to sources, Applied Materials (a Critical Infrastructure organization in California) was hit with a cyber attack. It was first reported on 2023-02-28.

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Source 1  |  2023-02-28

Major Semiconductor Firm Applied Materials Hit by Supply Chain Attack; Ransomware Impact Will Cost $250 Million

“A supply chain attack on a business partner of semiconductor giant Applied Materials will cost the company $250 million in the coming quarter. The company did not specify which partner was hit by the ransomware attack, but said that the incident would disrupt upcoming shipments. “

“It is possible that MKS Instruments, an industrial equipment supplier, was the breach point of the supply chain attack as that company announced that it had been hit with ransomware on February 3 and would have to reschedule its fourth quarter earnings call. Applied Materials has not commented on this as of yet other than to say it was a “major” supplier. “

“If MKS was indeed the source of the supply chain attack, the whole incident is likely attributable to the recent global campaign against VMware ESXi servers that has been targeting established but unpatched vulnerabilities“

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