Advanced Micro Devices Gets Some Malware-Fix Claims Tossed

Advanced Micro Devices Inc. won the dismissal of six claims in a would-be nationwide class suit alleging security-related fixes in its units slowed computer processing.

AMD knew about malicious software called Spectre and didn’t tell purchasers, the consumers allege. And its patch to prevent a Spectre attack on its central processing units, or CPUs, significantly reduced processing speeds, they say.

But the consumers didn’t consistently identify the alleged defect they’re suing over, the U.S. District Court for the Northern District of California said Oct. 29. The court addressed only six claims in the sprawling, 25-claim proposed class action.

The lack ...