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For hackers and cybercriminals, speculative execution is a gift that keeps on giving.
iLeakage
For demonstration purposes, the researchers created a new website.
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Even passwords being autofilled bypassword managersarent safe.
Finally, we demonstrate the recovery of passwords, in case these are autofilled by credential managers.
Safari is used as means of attack only on Macs.
Speculative execution is a feature built into most of todays hardware, to enhance its speed.
If it speculated correctly, it can execute the operation quickly, thus improving the devices overall speed.
Patching the flaws meant slowing the devices down.
ViaArsTechnica