Apple has confirmed that all Macs, iPhones, iPads and other devices (bar Apple Watch) are vulnerable to the newly revealed Spectre and Meltdown Intel, ARM and AMD processor vulnerabilities.

What’s the problem?

Taking advantage of a vulnerability that has been around for 20 years, Meltdown and Spectre exploit a CPU performance feature called “speculative execution.” Speculative execution exists to improve computer speed by enabling the processor to work on multiple instructions at once, sometimes in non-sequential order.

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