Applied Materials’ Sales Shortfall Linked to Cyberattack at MKS

A “cybersecurity incident” that Applied Materials Inc. warned would hurt its sales this quarter was linked to a ransomware attack disclosed by MKS Instruments Inc. earlier this month.

Though Applied Materials didn’t name the company when it warned of the problem Thursday, it said a breach at one of its suppliers would shave $250 million from second-quarter sales. That suggests Applied Materials is referring to MKS, a vendor that said a ransomware incident would force it to delay the release of quarterly results.