Meltdown, Spectre, and the Costs of Unchecked Innovation

When the blockbuster twin security exploits known as Meltdown and Spectre appeared in early 2018, Mozilla was among the first to respond, retroactively changing several behaviors of Firefox to help prevent them. Both attacks rely on using high-speed timing measurements to detect sensitive information, so somewhat counterintuitively, the patches had to decrease the speed of seemingly mundane computations.

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