Qualcomm alleges in the latest suit that Apple failed to protect the chipmaker's software and isn't allowing an audit to review how the iPhone maker handles the software, an obligation that Qualcomm says is included in their contract.
Qualcomm countersued Apple back in April for an alleged breach of contract.
iOS is completely tailored to run flawlessly with the hardware inside of each iPhone and iPad.
In January, Apple sued Qualcomm for almost $1 billion for charging a hefty price for royalties on technologies that Apple said the chipmaker should not be associated with. Now, the Qualcomm vs. Apple legal war has escalated into a new suit alleging that Apple has shared trade secrets with Qualcomm rival Intel. Apple's decision about next year's products comes after the San Diego-based Qualcomm withheld software needed to test chips in prototypes, the Wall Street Journal reported.More news: The 16 worst countries for gender equality
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Revenue from its Qualcomm CDMA Technologies (QCT) unit, which includes its chip business that supplies both Android smartphone makers and Apple, rose 13 percent to $4.65 billion.
Apple has relied on Qualcomm chips all along until iPhone 6 and iPhone 6 Plus, but with the iPhone 7 and iPhone 8 series, and the iPhone X, Apple started using a mix of Qualcomm and Intel chips.
According to law firm, Bernstein Litowitz Berger & Grossmann, which serves as lead counsel for the lawsuit, "Qualcomm's clear-cut anti-competitive practices dealt a swift and severe blow to the value of the company's shares, causing Qualcomm's stock price to plummet 33 percent during the class period, erasing over $32 billion in shareholder value".